Sirindhorn International Institute of Technology

Teaching Staff

Dr. Pakorn Opaprakasit (Associate Professor)

วันที่โพสต์ : 2022-01-04

Faculty

School of Bio-Chemical Engineering and Technology (BCET)

Name

Dr. Pakorn Opaprakasit (Associate Professor)

Position

Head, School of Integrated Science and Innovation (ISI)

E-mail

pakorn@siit.tu.ac.th

Phone Rangsit

+66-2-986-9009, +66-2-986-9101, +66-2-564-3226

Phone Bangkadi

Phone Extension

1806

Education

B.Sc. (1st Class Honors) in Chemistry, Chiang Mai University, Thailand
M.S. in Materials Science and Engineering (Polymer Option), The Pennsylvania State University,Pennsylvania, USA
Ph.D. in Materials Science and Engineering, the Pennsylvania State University, Pennsylvania, USA

Academic Awards

NRCT research awards (2 projects), National Research Council of Thailand, 2022.
World-Class Professors fellowships, Ministry of Education and Culture of Republic Indonesia, 2020 and 2021.
Seven Innovation award, National Innovation Agency (NIA), 2016.
NRCT research awards, National Research Council of Thailand, 2015.
TU IP Innovation awards, Thammasat University, 2015.
Thailand Toray Science Foundation research grant award, 2009.
Young Researcher Award, Thammasat University, 2008.
Gold Medal Prize, 1997, Chiang Mai University, Thailand.
Gold Medal Prize, 1997, The Thab Foundation, Chulalongkorn University, Thailand.
Development and Promotion of Science and Technology Talents Project (DPST) Scholarship, 1990-2003.

Research Areas

Materials in Bio-Circular-Green (BCG) economy for sustainability, Materials Characterization, Infrared spectroscopy, Nanomaterials/Functional materials, Rapid prototyping/Electrospinning/3D printing

Research Interests

Functional polymers in Bio-Circular-Green (BCG) economy

A circular economy is a model of production and consumption to achieve sustainable development. The life cycle of products is extended, and waste is reduced to a minimum by keeping the materials within the economy. In the materials aspect, fossil-based plastic products have been widely used, leading to a pollution crisis due to thematerial’s durability. Alternatively, bio-based bioplastics have attracted vast attention due to their renewability, non-toxicity, degradability, and biocompatibility. Although these materials are degradable, recycling their post-consumer products is considered effective and sustainable, especially by converting them to value-added starting materials for other functional materials. In our laboratory, chemical recycling processes for post-consumer polyesters and polyolefins have been developed to generate various small- sized compounds with functional groups. These are used as as starting materials for various functional polyesters, polyurethanes, additives, and adhesive products. These products are designed to be repeatedly used via chemical recycling to achieve a circular economy.

Functional responsive polymeric hybrid nanoparticles

Stimuli-responsive polymeric hybrid particles are of great interest for use in various applications, especially in biomedical and environmental fields. The materials are powerful tools for encapsulation and controlled delivery of various active compounds, as these can specifically respond to physical and chemical changes in their environment, such as temperature, photoirradiation, ultrasound, magnetic field, pH, redox species, and biomolecules. In our laboratory, various polymeric hybrid particles have been synthesized, and their potential applications are assessed. For example, magnetic polymeric nanoparticles (MPNPs) with responsive to an external magnetic field and induction heating, biodegradable/biocompatible microspheres with solid or hollow structures and tunable morphology, chitosan nanoparticles and membranes with antibacterial properties, and temperature-sensitive gating biodegradable nanoparticles for encapsulation and delivery of drugs at the body temperature.

For more information:

https://fametu.com/
Orcid ID: https://orcid.org/0000-0003-1490-8258
https://www.researchgate.net/profile/Pakorn-Opaprakasit?ev=hdr_xprf
https://scholar.google.co.th/citations?user=NoZOJqcAAAAJ&hl=en

Work Experiences

2019 – Present: Head, School of Integrated Science and Innovation (ISI)
2020 – Present: Associate editor of the Science and Innovation of Advanced Materials (SIAM) journal, an official journal of the MRS-Thailand.
2021 – Present: Vice President, The Science, Mathematics, and Technology Teachers Association of Thailand (SMTAT).
2021 - Present: Vice President, The Materials Research Society of Thailand (MRS-Thailand).
2020 - Present: Head, Functional Advanced Materials Engineering (FAME) research center.
2018- Present: Fellows, Thai Academy of Science and Technology Foundation (TAST).
2014 - Present: Executive Board of the Polymer Society of Thailand (PST).
2016- 2019: Deputy Director for Research and Academic Quality Assurance, SIIT.
2014 - 2016: Head, Department of Common and Graduate Studies, SIIT.
2010 - 2015: Academic Consultant, The Institute for the Promotion of Teaching Science and Technology (IPST)
2006 –2014: Assistant Director for Admission and Public Relations, SIIT.
2004 –2006: Curriculum Coordinator of Undergraduate Common Studies, Department of Common and Graduate Studies, SIIT
2003-2004: Consultant in Coal Characterization
2003-2004: Postdoctoral Fellow, Department of Materials Science and Engineering, The Pennsylvania State University, Pennsylvania, USA
1998-2002: Research and Teaching Assistant, The Energy Institute, The Pennsylvania State University, Pennsylvania, USA

List of Publications

International Journal Articles
1.   Sukidpaneenid, S., C. Chawengkijwanich, C. Pokhum, T. Isobe, P. Opaprakasit and P. Sreearunothai*, Multi-function adsorbent-photocatalyst MXene-TiO2 composites for removal of enrofloxacin antibiotic from water, Journal of Environmental Sciences (China), 2023, 124, 414-428. [IF 2020 = 5.57]
2.   Eang, C.; Nim, B.; Sreearunothai, P.; Petchsuk, A.; Opaprakasit, P.*, Chemical upcycling of polylactide (PLA) and its use in fabricating PLA-based super-hydrophobic and oleophilic electrospun nanofibers for oil absorption and oil/water separation, New Journal of Chemistry 2022, 46, 14933 - 14943. [IF 2020 = 3.591]
3.   Kaewsaneha, C.; Roeurn, B.; Apiboon, C.; Opaprakasit, M.; Sreearunothai, P.; Opaprakasit, P.*, Preparation of Water-Based Alkyl Ketene Dimer (AKD) Nanoparticles and Their Use in Superhydrophobic Treatments of Value-Added Teakwood Products. ACS Omega 2022. [IF 2020 = 4.132]
4.   Thananukul, K.; Kaewsaneha, C.; Opaprakasit, P.*; Zine, N.; Elaissari, A*. Biodegradable porous micro/nanoparticles with thermoresponsive gatekeepers for effective loading and precise delivery of active compounds at the body temperature. Scientific. Reports. 2022, 12 (1). [IF 2020 = 5.516]
5.   Shahid, M.; Sagadevan, S.; Ahmed, W.; Zhan, Y.; Opaprakasit, P., 1 - Metal oxides for optoelectronic and photonic applications: A general introduction. In Metal Oxides for Optoelectronics and Optics-Based Medical Applications, Sagadevan, S., Podder, J., Mohammad, F. Eds.; Elsevier, 2022; pp 3-31. [IF 2020 = N/A]
6.   Ren, N.; Petchsuk, A.; Opaprakasit, M.; Sreearunothai, P.; Opaprakasit, P.*, Surface modifications of low-density polyethylene films with hydrophobic and antibacterial properties by chitosan-based materials, Polymer - Plastics Technology and Engineering 2022, Article. [IF 2020 = 3.267]
7.   Arphaphorn Arjhan, ‪Sirirat Wacharawichanant*, Pakorn Opaprakasit, Influence of Lignin Content on Morphology and Properties of Poly(Lactic Acid)/Lignin Composite Films. In 2nd International Conference on Engineering and Industrial Technology, ICEIT 2021, Limmatvapirat, S., Akkaramongkolporn, P., Patrojanasophon, P., Rojanarata, T., Eds.; Trans Tech Publications Ltd: 2022; Vol. 914 KEM, pp 155-161.‬‬‬
8.   Putri, O. D.; Petchsuk, A.; Bayram, S.; Opaprakasit, P.*, Ultrasonicate-assisted preparation of eumelanin-loaded nano/microparticles based on polylactide stereocomplex. Materials Today: Proceedings 2022. [IF 2020 = N/A]
9.   Khoerunnisa, F., M. Sihombing, M. Nurhayati, F. Dara, H. A. Triadi, M. Nasir, H. Hendrawan, A. Pratiwi, E. P. Ng and P. Opaprakasit*, Poly(ether sulfone)-based ultrafiltration membranes using chitosan/ammonium chloride to enhance permeability and antifouling properties, Polymer Journal, 2022. [IF 2020 = 4.43]
10.   Khoerunnisa, F.; Nurhayati, M.; Annisa, N. A. A.; Fatimah, S.; Nashrah, N.; Hendrawan, H.; Ko, Y. G.; Ng, E. P.; Opaprakasit, P.*, Effects of Benzalkonium Chloride Contents on Structures, Properties, and Ultrafiltration Performances of Chitosan-Based Nanocomposite Membranes, Membranes 2022, 12 (3). [IF 2020 = 3.99]
11.   Thananukul, K.; Kaewsaneha, C.; Sreearunothai, P.; Petchsuk, A.; Buchatip, S.; Supmak, W.; Nim, B.; Okubo, M.; Opaprakasit, P.*, Biocompatible Degradable Hollow Nanoparticles from Curable Copolymers of Polylactic Acid for UV-Shielding Cosmetics. ACS Applied Nano Materials 2022, 5 (3), 4473-4483. [IF 2020 = 4.86]
12.   Pitakjakpipop, H., R. Rajan, K. Tantisantisom, P. Opaprakasit, D. D. Nguyen, V. A. Ho, K. Matsumura* and P. Khanchaitit, Facile Photolithographic Fabrication of Zwitterionic Polymer Microneedles with Protein Aggregation Inhibition for Transdermal Drug Delivery, Biomacromolecules, 2022, 23(1), 365-376. [IF 2020 = 6.46]
13.   Jaikaew, N.; Auras, R.; Opaprakasit, P.*, Optimization of Melt-mixing Transesterification of Polylactide by Polyethylene Glycol Employing Response Surface Methodology, Chiang Mai Journal of Science 2022, 49 (1 Special issue 1), 69-80. [IF 2020 = 0.325]
14.   Tu Phuong Pham Le and Opaprakasit P.*, Halogen-free “green and mild” process to generate N-oxoammonium cations for use in oxidation of hydroxyls and its quantitative analysis technique and optimization, Chemical Engineering Journal 2022, 429, 132554. [IF 2020 = 13.273]
15.   Khotchana, C., Phapugrangkul, P., Opaprakasit, P., Chaiyasat, P., Chaiyasat, A.*, Synthesis of uniform submicron poly(lactic acid)-based particles/capsules by radical precipitation polymerization, Colloids and Surfaces B: Biointerfaces, 2021, 208, 112122 [IF 2020 = 5.268]
16.   Katugampalage, T. R.; Ratanatawanate, C.; Opaprakasit, P.; Kaewsaneha, C.; Sreearunothai, P.*, A smart magnetically separable MIL-53(Al) MOF-coated nano-adsorbent for antibiotic pollutant removal with rapid and non-contact inductive heat regeneration. Chemical Engineering Journal Advances 2021, 100160. [IF 2020 = N/A]
17.   Fitri Khoerunnisa*, Mita Nurhayati, Fitri Dara, Regita Rizki, Muhamad Nasir, Hafiz Aji Aziz, Hendrawan Hendrawan, Ng Eng Poh, Chariya Kaewsaneha, Pakorn Opaprakasit*, Physicochemical Properties of TPP-Crosslinked Chitosan Nanoparticles as Potential Antibacterial Agents, Fibers and Polymers 2021. [IF 2020 = 1.797]
18.   Thananukul, K.; Kaewsaneha, C.; Opaprakasit, P.; Lebaz, N.; Errachid, A.; Elaissari, A.*, Smart gating porous particles as new carriers for drug delivery, Advanced Drug Delivery Reviews 2021, 174, 425–446. [IF 2020 = 13.300]
19.   Kaewsaneha, C.; Opaprakasit, P.*, Stimuli-responsive Bio-based Polymeric Particles and their Use in Biomedical Applications, Science and Innovation of Advanced Materials. 2021, 1(1), Article no. 1. [IF 2020 = N/A]
20.   Kaewsaneha, C.*, Elaissari, A., Opaprakasit, P., Sreearunothai, P., Tangboriboonrat, P., Poly(styrene- b-acrylic Acid) Nanoparticles with High Magnetic Loading for Magnetic Hyperthermia Cancer Therapy, ACS Applied Nano Materials, 2021, 4(2), 1841-1848. [IF 2020 = 5.097]
21.   Khoerunnisa, F.; Kulsum, C.; Dara, F.; Nurhayati, M.; Nashrah, N.; Fatimah, S.; Pratiwi, A.; Hendrawan, H.; Nasir, M.; Ko, Y. G.; Ng, E.-P.; Opaprakasit, P.*, Toughened chitosan-based composite membranes with antibiofouling and antibacterial properties via incorporation of benzalkonium chloride. RSC Advances 2021, 11 (27), 16814-16822. [IF 2020 = 3.119]
22.   Nim, B.; Opaprakasit, P.*, Quantitative analyses of products from chemical recycling of polylactide (PLA) by alcoholysis with various alcohols and their applications as healable lactide-based polyurethanes. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy. 2021, 255. [IF 2020 = 3.232]
23.   Jirawan Jindakaew, Chalita Ratanatawanate, Takeshi Kikutani, and Pakorn Opaprakasit*, Property Enhancement of Polylactide Monofilaments by Cold-Drawing Process and Solvent Infusion, Chiang Mai Journal of Science 2021, 48(2), 323 - 331. [IF 2020 = 0.325]
24.   Khoerunnisa, F.; Yolanda, Y. D.; Nurhayati, M.; Zahra, F.; Nasir, M.; Opaprakasit, P.; Choo, M. Y.; Ng, E. P.*, Ultrasonic Synthesis of Nanochitosan and Its Size Effects on Turbidity Removal and Dealkalization in Wastewater Treatment, Inventions 2021, 6 (4), Article. DOI: 10.3390/inventions6040098 [IF 2020 = 2.67]
25.   Tu Phuong Pham Le and Opaprakasit P.*, Conversion Mechanisms of Nitroxyl Radical (TEMPO), Oxoammonium Cation, and Hydroxylamine in Aqueous Solutions: Two-Dimensional Correlation Ultraviolet–Visible Spectroscopy, Applied Spectroscopy, 2021, 75(3), 325-335. [IF 2020 = 2.087]
26.   Nim, B.; Opaprakasit, M.; Petchsuk, A.; Opaprakasit, P.*; Microwave-assisted chemical recycling of polylactide (PLA) by alcoholysis with various diols, Polymer Degradation and Stability, 2020, 181, Article number 109363, Nov 2020. [IF 2020 = 4.032]
27.   Kaewsaneha, C.*, Elaissari, A., Tangboriboonrat, P., Opaprakasit, P.*, Self-assembly of amphiphilic poly(styrene-b-acrylic acid) on magnetic latex particles and their application as a reusable scale inhibitor, RSC Advances, 2020, 10(67), 41187-41196. Nov 2020 [IF 2020 = 3.119]
28.   Wongsirojkul, N., Shimokawa, N., Opaprakasit, P., Takagi, M., Hamada, T.*, Osmotic-Tension-Induced Membrane Lateral Organization. Langmuir, 2020, 36 (11), 2937-2945. [IF 2020 = 3.557]
29.   Eang, C., Opaprakasit, P.*, Electrospun Nanofibers with Superhydrophobicity Derived from Degradable Polylactide for Oil/Water Separation Applications. Journal of Polymers and the Environment, 2020, 28, 1484-1491. [IF 2020 = 2.572]
30.   Tu Phuong Pham Le and Opaprakasit P.*, Preparation of Polylactide/Modified Clay Bio-composites Employing Quaternized Chitosan-Modified Montmorillonite Clays for Use as Packaging Films, Chemical Engineering Transactions, 2020, 78, 115-120. [IF 2020 = N/A, SJR = Q3]
31.   Rahman, M., Thananukul, K., Supmak, W., Petchsuk, A., Opaprakasit, P.*, Synthesis and quantitative analyses of acrylamide-grafted poly(lactide-co-glycidyl methacrylate) amphiphilic copolymers for environmental and biomedical applications, Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2020, 225, Jan 2020, Article no. 117447 [IF 2020 = 3.232]
32.   Le, G. T. T.; Chanlek, N.; Manyam, J.; Opaprakasit, P.; Grisdanurak, N.; Sreearunothai, P.*, Insight into the ultrasonication of graphene oxide with strong changes in its properties and performance for adsorption applications. Chemical Engineering Journal 2019, 1212-1222. [IF 2020 = 13.273]
33.   Nim, B.; Sreearunothai, P.; Petchsuk, A.; Opaprakasit, P.*; Preparation and Properties of Electrospun Fibers of Titanium Dioxide-Loaded Polylactide/Polyvinyl pyrrolidone Blends, Applied Science and Engineering Progress, 2019, 12(1), 52-58, Jan-Mar 2019. [IF 2020 = N/A, SJR]
34.   Le, G. T. T.; Manyam, J.; Opaprakasit, P.; Chanlek, N.; Grisdanurak, N.; Sreearunothai, P.*, Divergent mechanisms for thermal reduction of graphene oxide and their highly different ion affinities. Diamond and Related Materials 2018, 89, 246-256. [IF 2020 = 2.650]
35.   Thananukul, K.; Petchsuk, A.; Supmak, W.; Chaiyasat, P.; Chaiyasat, A.; Opaprakasit, P.*, Preparation of crosslinked poly(Lactic acid-co-glycidyl methacrylate) microspheres by phase inversion emulsification. Chiang Mai Journal of Science 2018, 45 (5), 2048-2058. [IF 2020 = 0.325]
36.   Jaikaew, N.; Petchsuk, A.; Opaprakasit, P.*, Preparation and properties of polylactide bio-composites with surface-modified silica particles. Chiang Mai Journal of Science 2018, 45 (5), 2059-2068. [IF 2020 = 0.325]
37.   Rahman, M.; Opaprakasit, P.*; Effects of UV/Photo-Initiator Treatments on Enhancement of Crystallinity of Polylactide Films and Their Physicochemical Properties, Journal of Polymers and the Environment, 2018, 26(7), 2793-2802. [IF 2020 = 2.572]
38.   Nim, B.; Sreearunothai, P.; Petchsuk, A.; Opaprakasit, P.*; Preparation of TiO2-loaded electrospun fibers of polylactide/poly(vinylpyrrolidone) blends for use as catalysts in epoxidation of unsaturated oils, Journal of Nanoparticle Research. 2018, 20 (4). [IF 2020 = 2.132]
39.   Wadeelada Thitisomboon, Pakorn Opaprakasit, Narisara Jaikaew, Siwarutt Boonyarattanakalin*; Characterizations of modified cassava starch with long chain fatty acid chlorides obtained from esterification under low reaction temperature and its PLA blending. Journal of Macromolecular Science, Part A. 2018, 55(3), 253-25. [IF 2020 = 1.349]
40.   Torpanyacharn, O.; Sukpuang, P.; Petchsuk, A.; Opaprakasit, P.; Opaprakasit, M.*, Curable precursors derived from chemical recycling of poly(ethylene terephthalate) and polylactic acid and physical properties of their thermosetting (co)polyesters. Polymer Bulletin. 2018, 75 (1), 395-414. [IF 2020 = 2.014]
41.   Rahman, M.; Sreearunothai, P.; Opaprakasit, P.*; Development and Characterization of Photoinduced Acrylamide-Grafted Polylactide Films for Biomedical Applications, International Journal of Polymer Science, 2017, Article Number: 5651398. [IF 2020 = 1.646]
42.   Rahman, M.; Opaprakasit, P.*; Quantitative Analysis of Polyacrylamide Grafted on Polylactide Film Surfaces Employing Spectroscopic Techniques, Applied Spectroscopy, 2017, 71 (11), 2457-2468. [IF 2020 = 2.087]
43.   Kaewmee, P.; Manyam, J.; Opaprakasit, P.; Truc Le, G. T.; Chanlek, N.; Sreearunothai, P.*, Effective removal of cesium by pristine graphene oxide: Performance, characterizations and mechanisms. RSC Advances. 2017, 7 (61), 38747-38756. [IF 2020 = 3.119]
44.   Tippo, N.; Manyam, J.; Yoosuk, B.; Opaprakasit, P.; Sreearunothai, P.*, Slow Release of Menthol Using Sorbents Developed from Microwave Graphene Oxide. Applied Science and Engineering Progress, 2017, 10(1), 71-76. [IF 2020 = N/A, SJR]
45.   Sukpuang, P.; Opaprakasit, M.; Petchsuk, A.; Sojikul, P.; Tangboriboonrat, P.; Opaprakasit, P.*, Polylactic Acid Glycolysate as Crosslinkers for Epoxidized Natural Rubber: Effect of Crosslinker Molecular Weight, Journal of Elastomers and Plastics 2015. 48 (2), 105-121 [IF 2020 = 1.200]
46.   Opaprakasit, P.*, Boonpa, S.; Jaikaew, N.; Petchsuk, A.; Tangboriboonrat, P., Preparation of Surface-Modified Silica Particles from Rice Husk Ash and Its Composites with Degradable Polylactic Acid, Macromolecular Symposia 2015. 354, 48-54. [IF 2020 = N/A, SJR: Q3]
47.   Chantarodsakun, T.; Vongsetskul, T.*; Jangpatarapongsa, K.; Tuchinda, P.; Uamsiri, S.; Bamrungcharoen, C.; Kumkate, S.; Opaprakasit, P.; Tangboriboonrat, P.; [6]-Gingerol-loaded cellulose acetate electrospun fibers as a topical carrier for controlled release, Polymer Bulletin 2014, 71, 3163-3176. [IF 2020 = 2.014]
48.   Sriromreun, P.; Petchsuk, A.; Opaprakasit, M.; Opaprakasit, P.*, Miscibility and Hydrolytic Degradability of Polylactic acid/Poly(ethylene terephthalate-co-lactic acid) Blends, Chiang Mai Journal of Science 2014. 41(3), 691-703. [IF 2020 = 0.325]
49.   Petchsuk, A.*; Buchatip , S.; Supmak, W.; Opaprakasit, M.; Opaprakasit, P.*, Preparation and Properties of Multi-branched Poly(D-lactide) Derived from Polyglycidol and Its Stereocomplex Blends, eXPRESS Polymer Letters 2014, 8(10), 779-789. [IF 2020 = 3.083]
50.   Nuasaen, S.; Opaprakasit, P.; Tangboriboonrat, P.*, Hollow Latex Particles Functionalized with Chitosan for the Removal of Formaldehyde from Indoor Air, Carbohydrate Polymers 2014, 101(1), 179-187. [IF 2020 = 7.182]
51.   Thammawong, C.; Buchatip, S.; Petchsuk, A.; Tangboriboonrat, P.; Chanunpanich, N.; Opaprakasit, M.; Sreearunothai, P.; Opaprakasit, P.*, Electrospinning of Poly(L-Lactide-co-DL-Lactide) Copolymers : Effect of Chemical Structures and Spinning Conditions, Polymer Engineering and Science Journal 2014. 54(2), 472-480. [IF 2020 = 1.917]
52.   Thammawong, C.; Opaprakasit, P.; Tangboriboonrat, P.; Sreearunothai P.*, Prussian Blue-Coated Magnetic Nanoparticles for Removal of Cesium from Contaminated Environment, Journal of Nanoparticles Research 2013. 15 (6), art no.1689. [IF 2020 = 2.132]
53.   Tounthai, J.; Petchsuk, A.; Opaprakasit, P.; Opaprakasit*, M., Curable polyester precursors from polylactic acid glycolyzed products, Polymer Bulletin 2013, 70(8), 2223-2238. [IF 2020 = 2.014]
54.   Sriromreun P., Petchsuk A., Opaprakasit M., Opaprakasit P.*, Standard Methods for Characterizations of Structure and Hydrolytic Degradation of Aliphatic/aromatic Copolyesters, Polymer Degradation and Stability 2013, 98 (1), 169-176. [IF 2020 = 4.032]
55.   Petchsuk A.*, Submark W., Opaprakasit P., Development of Crosslinkable Poly(lactic acid-co-glycidyl methacrylate) Copolymers and their Curing Behaviors, Polymer Journal 2013, 45, 406-412. [IF 2020 = 2.826]
56.   Thammawong C., Sreearunothai P., Petchsuk A., Tangboriboonrat P., Pimpha N., Opaprakasit P.*, Preparation and Characterizations of Naproxen-Loaded Magnetic Nanoparticles Coated with PLA-g-Chitosan Copolymer, Journal of Nanoparticles Research 2012, 14(8), art no.1046. [IF 2020 = 2.132]
57.   Kaewsaneha C., Opaprakasit P., Polpanich D., Smanmoo S., Tangboriboonrat P.*, Immobilization of Fluorescein Isothiocyanate on Magnetic Polymeric Nanoparticle Using Chitosan as Spacer, Journal of Colloid and Interface Science 2012, 377, 145-152. [IF 2020 = 7.489]
58.   Nguyen T.H., Tangboriboonrat P., Rattanasom N., Petchsuk A., Opaprakasit M., Thammawong C., Opaprakasit P.*, Polylactic acid/Ethylene Glycol Triblock Copolymers as Novel Crosslinkers for Epoxidized Natural Rubber, Journal of Applied Polymer Science 2012, 124(1), 164-174. [IF 2020 = 2.520]
59.   Kongthong W., Petchsuk A., Opaprakasit P., Opaprakasit M.*, Processability Enhancement of Poly(lactic acid-co-ethylene terephthalate) by Blending with Poly(ethylene-co-vinyl acetate), Poly(3-hydroxybutyrate-co-3-hydroxyvalerate),and Poly(butylene succinate), Polymer Bulletin 2011, 67, 275-290. [IF 2020 = 2.014]
60.   Tanpantree, S., Opaprakasit, P., Polpanich, D., Smanmoo, S., Tangboriboonrat, P.*, Polymeric Disinfectant Nanocapsules: Effect of Molecular Weight of Poly(methyl methacrylate), Journal of Biomedical Nanotechnology 2010, 6(4), 385-390. [IF 2020 = 4.483]
61.   Kaewsaneha, C., Opaprakasit, P., Polpanich, D., Smanmoo, S., Tangboriboonrat, P.*, Composite Particles of Disinfectant Nanocapsules-Skim Rubber Latex, International Journal of Polymer Analysis and Characterization 2010, 15 (8), 524-535. [IF 2020 = 1.716]
62.   Namkajorn M., Petchsuk A., Opaprakasit M., Opaprakasit P. *, Synthesis and Characterizations of Degradable Aliphatic-Aromatic Copolyesters from Lactic Acid, Dimethyl Terephthalate and Diol: Effects of Diol Type and Monomer Feed Ratio, eXPRESS Polymer Letters 2010, 4 (7), 415-422. [IF 2020 = 3.083]
63.   Tanpantree S., Opaprakasit P., Loykulnant S., Kangwansupamonkon W., Tangboriboonrat P.*, Nanocapsules Embedded in Natural Rubber Latex Gloves, Journal of Applied Polymer Science 2010, 117, 1798-1803. [IF 2020 = 2.520]
64.   Opaprakasit M.*, Petchsuk A., Opaprakasit P., Chongprakobkit S., Effects of Synthesis Conditions on Chemical Structures and Physical Properties of Copolyesters from Lactic acid, Ethylene Glycol and Dimethyl Terephthalate, eXPRESS Polymer Letters 2009, 3, 458–468. [IF 2020 = 3.083]
65.   Opaprakasit P.*, Opaprakasit M., Thermal Properties and Crystallization Behaviors of Polylactide and Its Enantiomeric Blends, Macromolecular Symposia, 2008, 264, 1, 113-120. [IF 2020 = N/A, SJR: Q3]
66.   Opaprakasit P.*, Opaprakasit M., Tangboriboonrat P., Crystallization of Polylactide and Its Stereocomplex Investigated by Two-Dimensional FTIR Correlation Spectroscopy Employing Carbonyl Overtones, Applied Spectroscopy, 2007, 61, 12, 1352-1358. [IF 2020 = 2.087]
67.   Opaprakasit P.*, Petchsuk A., Painter P.C., Malkov S., Dynamic 2D-FTIR Spectroscopic Studies of Poly(Vinylidine Fluoride/Trifluoroethylene/Chloro trifluoroethylene), P(VDF/TrFE/CTFE) Terpolymer, Chiang Mai Journal of Science, 2005, 32, 515-519. [IF 2020 = 0.420]
68.   Larsen J.W.*, Islas-Flores C., Aida M.T., Opaprakasit P., Painter P.C., Low Temperature Anhydride Formation in Kerogens, Energy & Fuels 2005, 19, 145-151. [IF 2020 = 3.421]
69.   Opaprakasit P., Painter, P.C.*, Swelling of Clays in N-Methyl-2-Pyrrolidinone/Carbon Disulfide Mixed Solvents, Energy & Fuels 2004, 18, 1704-1708. [IF 2020 = 3.421]
70.   Opaprakasit P., Painter, P.C.*, Determination of the Glass Transition Temperature of a Coal Extract, Using a Polymer Blend Methodology, Energy & Fuels 2004, 18, 1648-1655. [IF 2020 = 3.421]
71.   Opaprakasit, P.; and Painter, P.C.*, Concerning the Glass Transition Temperature of Coal, Energy & Fuels 2003, 17, 354-358. [IF 2020 = 3.421]
72.   Opaprakasit, P.; Scaroni, A.W.; and Painter, P.C.*, Ionomer-Like Structures and π-Cation Interactions in Argonne Premium Coals, Energy & Fuels 2002, 16, 543-551. [IF 2020 = 3.421]
73.   Opaprakasit, P.; Scaroni, A.W.; and Painter, P.C.*, Intramolecular Hydrogen Bonding and Calixarene-Like Structures in p-Cresol/ Formaldehyde Resins, Journal of Molecular Structure 2001, 570, 25-35. [IF 2020 = 2.463]
74.   Painter, P.C.*; Opaprakasit, P.; and Scaroni, A.W., Ionomers and the Structure of Coal, Energy & Fuels 2000, 14, 1115-118. [IF 2020 = 3.421]

Patents
1.   Thai Patent Application number 1201001387 (2012), Thammawong C., Sriaunothai P., Opaprakasit P., Preparation of coated magnetic nanoparticles for use as absorbent for Ce-137 radioactive nuclear wastes.
2.   Thai Patent Application number 1501006027 (2015), Maolanon R., Sriaunothai P., Opaprakasit P., Portable device for rapid measurement of free-fatty acid contents in oils and fat samples.
3.   Thai Patent Application number 1501004964 (2015), Opaprakasit P., Thananukul K., Supmak W., Petchsuk A., Preparation process of biodegradable hollow micro-particle from poly(lactic acid-co-glycidyl methacrylate) by suspension crosslinking.
4.   Thai Patent Application number 1501004965 (2015), Opaprakasit P., Jaikaew N., Supmak W., Petchsuk A., Preparation of silica micro-particle from rice husk ash and its surface modification by polylactic acid-g-chitosan in single step.
5.   Thai Patent Application number 1701005765 (2017) 28/09/2017, Petchsuk, A.; Opaprakasit, P.; Supmak, W., Preparation of crosslinked epoxidized natural rubber by employing poly(lactic acid-co-polyethylene glycol) as a crosslinker in emulsion process.
6.   Thai Patent Application number 1801003585 (2018), Opaprakasit P., Opaprakasit M., Rojanapitayakorn P., Polymers with super-hydrophobic surfaces: their components and preparation processes.
7.   Thai Patent Application number 1801003583 (2018), Opaprakasit P., Rojanapitayakorn, P., Surface treatment processes and their polymer products with super-hydrophobic property.
8.   Thai Petty Patent Application number 2003000234 (2020) 6/02/2020, Petchsuk, A.; Boonyarattanakalin S.; Opaprakasit, P.; Buchatip , S.; Supmak, W., Synthesis process of D-lactide employing microwave reactor
9.   Thai Patent Application number 2001003516 (2020), Opaprakasit P., Kaewsaneha C., Sriarunothai P., Method for anti-scalant concentration determination in cooling water system
10.   Thai Patent Application number 2001005575 Petchsuk, A.; Opaprakasit, P.; Buchatip , S.; Supmak, W., Bioplastic films with high heat stability
11.   Thai Patent Application number 2003002472 Petchsuk, A.; Opaprakasit, P.; Buchatip , S.; Supmak, W., The compositions of packaging products derived from bioplastics with high heat stability
12.   Thai Patent Application number 2101004502 Petchsuk, A.; Opaprakasit, P.; Buchatip , S.; Supmak, W.,
13.   Thai Patent Application number 2103000101 Opaprakasit, P., Biocomposite films from polylactide and microcrystalline cellulose derived from rice bran

Selected Keynote/Invited Lectures, Chair:
1.   Invited speaker, The Joint Conference on Research in Chemistry and Chemical Education (JCRCCE), 6-7 September 2022. Bandung, Indonesia
2.   Invited speaker, Pakorn Opaprakasit, Bioplastics for sustainable packaging, Thailand Research Expo 2022, August 2, 2022, Bangkok, Thailand.
3.   Invited speaker, Pakorn Opaprakasit, Functional Materials from Responsive Polymeric Hybrid Nanoparticles, The third international conference on science and technology of emerging materials (STEMa 2022), 4-6 August 2022, Pattaya, Thailand.
4.   Invited speaker, Pakorn Opaprakasit, Towards a circular economy: Chemical upcycling of postconsumer polymeric products for functional materials, MRS-Thailand- JASTIP Joint Special Symposium 2022, August 5, 2022, Pattaya, Thailand.
5.   Symposium Chair, Pakorn Opaprakasit, Polymers in BCG economy, The International Polymer Conference of Thailand: (PCT-12), Aug 4-5, 2022, Bangkok, Thailand
6.   Invited speaker, Pakorn Opaprakasit, Circularity of Materials: Chemical Upcycling of Postconsumer Plastics to Functional Degradable Products, Downstream Thailand Summit 2022 (DTS 2022), 29-30 June 2022, Pattaya, Thailand.
7.   Invited speaker, Pakorn Opaprakasit, Degradable polymers for a circular economy, Knowledge sharing seminar, PTTGC, June 4, 2022.
8.   Invited speaker, Pakorn Opaprakasit, Bio-plastics and chemical recycling of industrial plastics, Technical sharing seminar, SCG Chemicals, January 26, 2022.
9.   Keynote speaker, Chorney Eang, Bunthoeun Nim, Mantana Opaprakasit, Atitsa Petchsuk,
Pakorn Opaprakasit, Green Polyurethanes with Self-Healing and Shape Memory Properties Derived from Chemical Recycling Products of Polylactide, the International Conference on Advanced Material and Technology (ICAMT), National Battery Research Institute and MRS-Indonesia, online, December 14-16, 2021.
10.   Keynote speaker, Pakorn Opaprakasit, Bio-plastics and chemical recycling in circular economy and sustainability, the PST Symposium Series in "Polymer for Bio-Circular-Green Economy and Sustainability”, The Polymer Society of Thailand (PST), December 21, 2021.
11.   Invited speaker: World Class Professor (WCP) program summit 2021, Ministry of Education of Indonesia, online, December 9, 2021.
12.   Invited speaker and a session chair: Pakorn Opaprakasit, Responsive Polymeric Hybrid Particles for Use in Environmental and Biomedical Applications, The Joint International Conference on Applied Physics and Materials Applications & Applied Magnetism and Ferroelectrics (ICAPMA-JMAG-2021), Pattaya, Thailand, December 1-4, 2021.
13.   Keynote speaker, Pakorn Opaprakasit, Vibrational Spectroscopy in Advanced Materials Research and Industrial Applications, Future Chem International: Seminar Session, Bangkok, Thailand, October 29, 2021.
14.   Keynote speaker, Pakorn Opaprakasit, Materials in Bio Circular Green economy for sustainable development, The International webinar on “Material for Sustainability Strategy and Circular Economy”, MRS-Indonesia, November 10, 2021
15.   Invited Professor: World Class Professor (WCP) program, supported by the Ministry of Education of Indonesia and Universitas Pendidikan Indonesia (UPI), 2021.
16.   Invited speaker: Pakorn Opaprakasit, Chemical Recycling of Post-consumer Plastics for Use as Value-added Functional Materials, International Conference on Materials for Humanity (MH 21), July 6-9, 2021, Singapore.
17.   Keynote speaker and session chair, Stimuli-Responsive Polymeric Hybrid Particles for Use in Environmental and Biomedical Applications, The International Polymer Conference of Thailand: (PCT-11), July 1 - 2, 2021, Bangkok, Thailand
18.   Chair of a symposium on Advanced Polymeric Materials (Rubber, Plastics), The 21st International Union of Materials Research Societies - International Conference in Asia (IUMRS-ICA 2020 ), February 23 - 26, 2021, Chiang Mai, Thailand.
19.   Invited Professor: World Class Professor (WCP) program, supported by the Ministry of Education of Indonesia and Universitas Pendidikan Indonesia (UPI), 2020.
20.   Invited speaker: Pakorn Opaprakasit*, Bunthoeun Nim, Mantana Opaprakasit, Atitsa Petchsuk, Trash to Treasures: Chemical Recycling of Polyesters for Use as Value-added Functional Materials, The 1st International Conference on Advanced Materials for Printed Electronics and Sensors (1st ICAMPS 2020), September 10-11, 2020, Chiang Mai, Thailand.
21.   Chair of an Advanced and Functional Polymers symposium, The International Polymer Conference of Thailand: (PCT-10), July 4 - 5, 2020, Bangkok, Thailand.
22.   Invited speaker: Opaprakasit, P., Towards Circular Economy: Upcycling of Plastic Wates for Value-Added Products, Department of Materials Science, Chulalongkorn University, February 3, 2020, Bangkok, Thailand.
23.   Invited speaker and session chair: Opaprakasit, P., Chemical Recycling of Post-consumer Polyesters for Value-added Products, The Pacific Polymer Conference (PPC-16), December 8 -12, 2019, Singapore
24.   Invited speaker and session chair: Opaprakasit, P., Towards Circular Economy: Upcycling of Post-Consumer Polyesters for Value-Added Products, the 7th International Conference on Bio-Based Polymer (ICBP 2019), November 11-13, 2019, Bangkok, Thailand.
25.   Invited speaker and session chair: Opaprakasit, P., Polylactide Nanofibers with Super-hydrophobicity and Oleophilicity for Oil/Water Separation, 12th AUN/SEED-net RCME & ISMSE 2019, October 10-11, 2019, Ho Chi Minh City, Vietnam.
26.   Invited speaker: Opaprakasit, P., Research and Development in materials: from basic research to commercialization, The 55th Anniversary Science CMU Academic Conference and Meeting, Chiangmai University, September 13, 2019.
27.   Chair of a symposium on Polymer, Rubber, Plastics and Bioplastics, the 2nd Materials Research Society of Thailand International Conference (The 2nd MRS-Thailand Conference 2019), July 10 - 12, 2019, Pattaya, Thailand
28.   Chair of an Advanced and Functional Polymers symposium, The International Polymer Conference of Thailand: (PCT-9), June 13 - 14, 2019, Bangkok, Thailand
29.   Chair of a Polymer symposium, Pure and Applied Chemistry International Conference 2019 (PACCON 2019), Bangkok Thailand, February 7-8, 2019.
30.   Keynote speaker and session chair, Mijanur Rahman, Kamonchanok Thananukul, Wilairat Submark, Atitsa Petchsuk, Pakorn Opaprakasit*, Synthesis and Quantitative Analyses of Acrylamide Grafted Poly(lactide-co-glycidyl methacrylate) Amphiphilic Copolymers for Use in Environmental and Biomedical Applications, International Union of Materials Research Society – International Conference in Asia (IUMRS ICA 2018), Bali – Indonesia, October 31 – November 2, 2018
31.   Chair of a Recent Development in Polymer symposium, The International Polymer Conference of Thailand: (PCT-8), June 14 - 15, 2018, Bangkok, Thailand.
32.   Invited speaker and session chair: Kamonchanok Thananukul, Chariya Kaewsaneha, Atitsa Petchsuk, Wilairat Supmak, Pakorn Opaprakasit*, Fabrication of Biocompatible/Biodegradable Microspheres from Curable Polylactic Acid-Based Copolymers, The 6th Asian Symposium on Emulsion Polymerization and Functional Polymeric Microspheres (ASEPFPM 6), March 7-10, 2018, Fukui, Japan
33.   Invited speaker: Opaprakasit, P., Fabrication of Micro-/Nano-Particles of Polylactide Copolymers and their Use in Cosmetic and Biomedical Applications, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, February 9, 2018.
34.   Invited speaker and session chair: Opaprakasit, P., Thananukul, K., Petchsuk, A., Micro-/Nano-Particles with Tunable Properties from Curable Polylactide-based Copolymers for Encapsulation of Active Compounds, The International Conference on Advanced Polymer Science and Technology (ICAPST), January 12 -13, 2018, National Taipei University of Technology (NTUT), Taipei, Taiwan.
35.   Invited speaker and a session chair: Opaprakasit, P., Fabrication of Micro-/Nano-Particles of Curable Poly(lactide-co-glycidyl methacrylate) Copolymers and their Use in Cosmetic and Biomedical Applications, The Pacific Polymer Conference (PPC-15), December 10 -14, 2017, Xiamen, China
36.   Chair of a symposium on Polymer, Rubber, Plastics, and Bioplastics, the First Materials Research Society of Thailand International Conference (1st MRS Thailand), October 31 - November 3, 2017, Chiang Mai, Thailand
37.   Chair of a Science Education and Communication session in the 43rd Congress on Science and Technology of Thailand (STT 43), October 17 - 19, 2017, Bangkok, Thailand
38.   Chair of a Recent Development in Polymer symposium, The International Polymer Conference of Thailand: (PCT-7), June 1 - 2, 2017, Bangkok, Thailand.
39.   Keynote speaker and session chair: Opaprakasit, P., Fabrication of Curable Poly(lactic acid-co-glycidyl methacrylate) Copolymers and their Use in Cosmetic and Biomedical Applications, The International Polymer Conference of Thailand: (PCT-7), June 1 - 2, 2017, Bangkok, Thailand.
40.   Chair of a Science Education and Communication session in the 42nd Congress on Science and Technology of Thailand (STT 42), Nov 2016, Bangkok, Thailand
41.   Chair of the AUN/SEED-NET Regional Conference 2015 on Materials Engineering (RCME 2015), Nov. 2015, Bangkok Thailand
42.   Invited speaker: Opaprakasit, P., Lactide-Based Copolymers for Biomedical Applications, TRF Senior Researcher Grant’s Conference, SIIT, Thammasat University, 2015.
43.   Invited speaker: Opaprakasit, P., Lactide-Based Copolymers and Their Applications: Novel Crosslinker for Epoxidized Natural Rubber (ENR), TRF Senior Researcher Grant’s Conference, Prince of Songkla University, July 29 2011.
44.   Invited speaker: Opaprakasit, P., FTIR and 2-Dimensional FTIR correlation spectroscopy in characterizations of polymeric materials, Workshop on Infrared Microscopy, National Synchrotron Research Center (NSRC), 2-3 June, 2010.
45.   Invited speaker: Opaprakasit, P., Lactide-Based Copolymers: Synthesis and Applications, TRF Senior Researcher Grant’s Conference, Mahidol University, July 2010.
46.   Invited speaker: Opaprakasit, P., PLA-PET Copolymers: Synthesis and their Use in Agricultural Applications, TRF Senior Researcher Grant’s Annual Conference, Mahidol University Salalya Campus, July 2009.

Recent International Conference Proceedings (More than 95 articles)
1.   Nataphon Meeboonanake, Kajornsak Faungnawakij*, Rungnapa Kaewmeesri, Toshiyuki Yokoi, Pakorn Opaprakasit, Cobalt-based Catalysts Supported on Urea-Modified Sheet-Like ZSM-5 for Hydrodeoxygenation of FAMEs, The third international conference on science and technology of emerging materials (STEMa 2022), 4-6 August 2022, Pattaya, Thailand.
2.   Satienpong Pannawatwisut, Rungnapa Kaewmeesri, Toshiyuki Yokoi, Pakorn Opaprakasit, and Kajornsak Faungnawakit*, Synthesis and Characterization of 2-Dimensional Zeolite Catalyst Using C22-6-6Br2 Template, The third international conference on science and technology of emerging materials (STEMa 2022), 4-6 August 2022, Pattaya, Thailand.
3.   Andi Wijaya, Paiboon Sreearunothai, Duangporn Polpanich, Pakorn Opaprakasit, and Chariya Kaewsaneha*, Fabrication of Conductive Elastomer of MXene/Natural Rubber Composite Film by a Latex Blending Method, The International Polymer Conference of Thailand: (PCT-12), Aug 4-5, 2022, Bangkok, Thailand
4.   Oceu Dwi Putri, Atitsa Petchsuk2, Sinan Bayram, and Pakorn Opaprakasit*,, Ultrasonicate-assisted preparation of eumelanin-loaded nano/microparticles based on polylactide stereocomplex, the 14th AUN/SEED- Net Regional Conference on Materials & The 4th International Postgraduate Conference on Materials, Minerals and Polymer ( RCM & MAMIP 2021), Kaula Lumpur, Malaysia, December 1-2, 2021
5.   Piyaphat Komollit, Ruethai Onbhuddha, Seksan Papong, Pakorn Opaprakasit, Assessment of Land Use Impacts on Net Primary Production in Lopburi Province, Thailand, the 8th International Conference on Green and Sustainable Innovation (ICGSI 2021), Krabi, Thailand, 10-12 November 2021.
6.   Pakorn Opaprakasit*, Chariya Kaewsaneha, Kamonchanok Thananukul, Atitsa Petchsuk, Abdelhamid Elaissari, Paiboon Sreearunothai, Stimuli-Responsive Polymeric Particles for Use in Environmental and Biomedical Applications, Proceedings of the International Polymer Conference of Thailand 2021 (PCT-11), Bangkok, Thailand, July 1-2, 2021.
7.   Bunthoeurn Khann, Chariya Kaewsaneha*, Duangporn Polpanich*, and Pakorn Opaprakasit, Encapsulation of Black Pepper Essential Oils into Natural Microcapsules for Cosmetic Applications, Proceedings of the International Polymer Conference of Thailand 2021 (PCT-11), Bangkok, Thailand, July 1-2, 2021.
8.   Oceu Dwi Putri, Atitsa Petchsuk, Sinan Bayram, and Pakorn Opaprakasit, Preparation of eumelanin-encapsulated nanoparticles employing poly(D-lactide-b-caprolactone-b-D-lactide) block copolymer and its stereocomplex for use as UV shielding products, the 21st International Union of Materials Research Societies- International Conference in Asia (IUMRS-ICA 2020), Chiangmai, Thailand, Feb 23-26, 2021.
9.   Pattara Somnuake, Atitsa Petchsuk, and Pakorn Opaprakasit,* Electrospun nanofibers of polylactide (PLA) stereocomplex with super-hydrophobic surfaces for potential use in biomedical applications, Proceedings of the 21st International Union of Materials Research Societies- International Conference in Asia (IUMRS-ICA 2020), Chiangmai, Thailand, Feb 23-26, 2021.
10.   Pisit Srisuk, Atitsa Petchsuk, Pakorn Opaprakasit,* Toughening of polylactide (PLA) by blending with glycolyzed PLA-cured epoxidized natural rubber (ENR), Proceedings of the 21st International Union of Materials Research Societies- International Conference in Asia (IUMRS-ICA 2020), Chiangmai, Thailand, Feb 23-26, 2021.
11.   Suttanai Laosamathikul, Chariya Kaewsaneha, and Pakorn Opaprakasit*, Surface treatments of metallic mesh for use in fog-harvesting applications, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 29-34.
12.   Mattika Sappayasan, Pakorn Opaprakasit*, Chariya Kaewsaneha and Yusuke Shimoyama, Fabrication of chitosan/polylactic acid bead foam for tissue engineering applications, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 54-58.
13.   Jirawan Jindakaew, Pakorn Opaprakasit*, Chalita Ratanatawanate, Fabrication and properties of biocomposite films derived from Polylactic acid and metal-organic frameworks for use as active packaging, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 76-80.
14.   Thipparat Dunnimit and Pakorn Opaprakasit*, Toughness enhancement of polylactide (PLA) by melt blending with poly(ethylene glycol) at various molecular weights, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 81-85.
15.   Yukleav Nat, Pakorn Opaprakasit, Jedsada Manyam, Atitsa Petchsuk and Paiboon Sreearunothai*, Development of Indium Zinc Oxide nanoparticles for use in near infrared attenuated Polyethylene Film, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 94-99.
16.   Bunla Roeurn, Chariya Kaewsaneha , Atitsa Petchsuk, Paiboon Sreearunothai, and Pakorn Opaprakasit*, Fabrication of emulsion of fatty acid derivative for hydrophobicity improvement of paper products, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 112-116.
17.   Sophea Chheun, Chariya Kaewsaneha, Pakorn Opaprakasit, and Siwarutt Boonyarattanakalin*, Preparation of V-type cassava starch-coconut oil complexes using a combination treatment of enzymatic debranching and different complexation temperatures, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 175-180.
18.   Tikumporn Sudsakorn, Pakorn Opaprakasit, Chookiat Tansarawiput and Paiboon Sreearunothai*, Development of technique for determination of polyacrylic acidacrylamido sulfonic acid anti-scalant concentration in water cooling System, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 197-203.
19.   Atitsa Petchsuk*, Suthawan Buchatip, Wilairat Supmak and Pakorn Opaprakasit, Functional materials derived from poly(lactic acid)-based copolymers, Proceedings of the International Polymer Conference of Thailand 2020 (PCT-10), Bangkok, Thailand, August 6-7, 2020, p 4.

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