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Faculty : School of Bio-Chemical Engineering and Technology (BCET)
Name : Dr. Pakorn Opaprakasit (Associate Professor)
Position : Assistant Director for Admission and Public Relations
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
  • 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
    Infrared spectroscopy, Electrospining, Lactide-based polyesters, Biocompatible/degradable polymers, Natural rubber, Biomedical materials, Biodiesel, Sensors
Research Interests
    Lactide-based (biocompatible/degradable) Polyesters

    Polylactide (PLA) is an aliphatic polyester that is of interest in various applications, due to its biodegradability, biocompatibility, and renewable monomer resources. In addition, properties of this polymer can be modified for use in specific applications by copolymerization or blending with other polymers. In our lab, various lactide-based copolymers have been synthesized, e.g., poly(D-lactide), poly(L-lactide), poly(DL-lactide), poly(lactide-co-ethylene glycol), poly(lactide-co-glycidol), poly(lactide-co-ethylene terephthalate). The copolymers are then used in various applications, for example, as fertilizer controlled-release materials, packaging materials, and in biomedical, environmental and energy applications. Micro- and nanoencapsulation techniques and electrospinning methods are employed in the preparation of the materials.

    Conventional and Two-Dimensional FTIR Spectroscopy

    Infrared spectroscopy is a fundamental analytical technique that is widely used in material characterization. Recently, an advanced methodology, two-dimensional infrared spectroscopy (2D-FTIR) has been developed, which provides notable advantages over conventional FTIR. For example, an improvement in band resolution, simplicity in band assignment, and determination of relative order of responses of specific functional groups to external perturbation, have been achieved. The FTIR and 2D-FTIR techniques have been applied in characterizations of various materials, e.g., polymers, fuels, and minerals.

 
Work Experiences
  • 2004-Present: 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. Petchsuk A., Submark W., and Opaprakasit P., Development of crosslinkable poly(lactic acid-co-glycidyl methacrylate) copolymers and their curing behaviors, Polymer Journal, 2013, 45: (4), 406-412.
  2. Tounthai J., Petchsuk A., Opaprakasit P., and Opaprakasit M., Curable polyester precursors form polylactic acid glycolyzed products, Polymer Bulletin, 2013, 70: (8), 2223-2238.
  3. Thammawong C., Opaprakasit P., Tangboriboonrat P., and Sreearunothai P., Prussian blue-coated magnetic nanoparticles for removal of cesium from contaminated environment, Journal of Nanoparticle Research, 2013, 15: ( 6), Article No. 1691, 10 p.
  4. Sriromreun P., Petchsuk A., Opaprakasit M., and Opaprakasit P., Standard methods for characterizations of structure and hydrolytic degradation of aliphatic/aromatic copolyesters, Polymer Degradation and Stability, 2013, 98: (1) 169-176.
  5. Thammawong C., Sriarunothai P., Petchsuk A., Tangboriboonrat P., Pimpha N., and Opaprakasit P., Preparation and characterizations of naproxen-loaded magnetic nanoparticles coated with PLA-g-chitosan, Journal of Nanoparticle Research, 2012, 14: (8) Article No. 1046, 12 p.
  6. Kaewsaneha C., Opaprakasit P., Polpanich D., Smanmoo S., and Tangboriboonrat P., Immobilization of fluorescein isothiocyanate on magnetic polymeric nanoparticle using chitosan as spacer, Journal of Colloid and Interface Science, 2012, 377: (1) 145-152.
  7. T.-H. Nguyen; P. Tangboriboonrat; N. Rattanasom; A. Petchsuk; M. Opaprakasit; C. Thammawong and P. Opaprakasit, Polylactic acid/ethylene glycol triblock copolymer as novel crosslinker for epoxidized natural rubber, Journal of Applied Polymer Science, 2012, 124: (1), 164-174.
  8. Tanpantree, S., Opaprakasit, P., Polpanich, D., Smanmoo, S., and Tangboriboonrat, P., Polymeric Disinfectant Nanocapsules: Effect of Molecular Weight of Poly(methyl acrylate), Journal of Biomedical Nanotechnology, 2010, 6: (4) 1-6.
  9. Kaewsaneha C., Opaprakasit P., Polpanich D., Smanmoo S., and Tangboriboonrat P., Composite Particles of Disinfectant Nanocapsules-skim Rubber Latex, International Journal of Polymer Analysis and Characterization, 2010, 15: (8) 524-535.
  10. Namkajorn M., Petchsuk A., Opaprakasit M., and 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.
  11. Nguyen T.H., Petchsuk A., Tangboriboonrat P., Opaprakasit M., Sharp A., and Opaprakasit P., Synthesis and Characterizations of PLLA/PEG Block Copolymers, Advanced Materials Research, 2010, 93-94: 198-201.
  12. Tanpantree S., Opaprakasit P., Loykulnant S., Kangwansupamonkon W., Tangboriboonrat P., Nanocapsules Embedded in Natural Rubber Latex Gloves, Journal of Applied Polymer Science, 2010, 117: (3) 1798-1803.
  13. 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: (7) 458-468.
  14. Namkajorn M., Petchsuk A., Opaprakasit M., and Opaprakasit P., Synthesis and Characterization of PLA-Based Aliphatic-Aromatic Copolyesters: Effect of Diols, Advanced Materials Research, 2008, 55-57: 785-788.
  15. Sriromreun P., Opaprakasit M., Petchsuk A., and Opaprakasit P., Synthesis and Characterization Degradable Poly(Ethylene Terephthalate-Co-Lactic Acid) and Its Blends, Advanced Materials Research, 2008, 55-57: 789-792.
  16. Thammawong C., Thongkhong K., Iamtassana K., Sharp A., and Opaprakasit P., Production and Characterization of Polyhydroxyalkanoates (PHAs) from Inexpensive Substrates by Alcaligenes latus, Advanced Materials Research, 2008, 55-57: 893-896.
  17. Papangkorn J., Isaraphan C., Phinhongthong S., Opaprakasit M., and Opaprakasit P., Controlled- Release Material for Urea Fertilizer from Polylactic Acid, Advanced Materials Research, 2008, 55-57: 897-900.
  18. Jintakanon N., Opaprakasit P., Petchsuk A., and Opaprakasit M., Controlled-Release Materials for Fertilizer Based on Lactic Acid Polymers, Advanced Materials Research, 2008, 55-57: 905-908.
  19. Opaprakasit P. and Opaprakasit M., Thermal Properties and Crystallization Behaviors of Polylactide and Its Enantiomeric Blends, Macromolecular Symposia  (Special Issue: Advances in Petrochemicals and Polymers), 2008, 264: (1) 113-120.
  20. Opaprakasit P., Opaprakasit M., and Tangboriboonrat P., Crystallization of Polylactide and Its Stereocomplex Investigated by Two-Dimensional Fourier Transform Infrared Correlation Spectroscopy Employing Carbonyl Overtones, Applied Spectroscopy, 2007, 61: (12) 1352-1358.
  21. 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.
  22. Opaprakasit P., Painter, P.C., Swelling of Clays in N-Methyl-2-Pyrrolidinone/Carbon Disulfide Mixed Solvents, Energy & Fuels, 2004, 18: 1704-1708.
  23. 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.
  24. Opaprakasit, P.; and Painter, P.C., Concerning the Glass Transition Temperature of Coal, Energy & Fuels, 2003, 17, 354-358.
  25. 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.
  26. Opaprakasit, P.; Scaroni, A.W.; and Painter, P.C., Intramolecular Hydrogen Bonding and Calixarene-Like Structures in p-Cresol/ Formaldehyde Resins, J. Mol. Structure,  2001, 570, 25-35.
  27. Painter, P.C.; Opaprakasit, P.; and Scaroni, A.W., Ionomers and the Structure of Coal, Energy & Fuels, 2000, 14, 1115- 118.

National Journal Article

  1. 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, Journal of the Science Faculty of Chiang Mai University,  2005; 32, 515-519.

International Conference Proceedings

  1. Pranee S., Petchsuk A., Opaprakasit P., Opaprakasit M., Synthesis of lactic acid-based block copolymer via atom transfer radical polymerization (ATRP), Proceedings of Pure and Applied Chemistry International Conference 2013 (PACCON2013), Chon Buri, Thailand, January 23-25, 2013.
  2. Chuenta T., Petchsuk A., Opaprakasit P., Opaprakasit M., Toughening of poly(lactic acid) by reactive blending with hyper-branched poly(lactic acid-co-caprolactone), Proceedings of Pure and Applied Chemistry International Conference 2013 (PACCON2013), Chon Buri, Thailand, January 23-25, 2013.
  3. Sriromreun P., Petchsuk A., Opaprakasit M., and Opaprakasit P., Properties and degradability of poly(propylene terephthalate-co-lactic acid) blends, Proceedings of the 2nd International Conference on Engineering and Applied Science (2013 ICEAS) [CD-ROM], Tokyo, Japan, March 15-17, 2013.
  4. Sriromreun P., Petchsuk A., Opaprakasit M., and Opaprakasit P., Synthesis and characterizations of poly(propylene terephthalate-co-lactic acid) copolymer, Proceedings of the 6th Pure and Applied Chemistry International Conference 2012 (PACCON 2012) [CD-ROM], Chiang Mai, Thailand, January 11-13, 2012.
  5. W. Supmak; A. Petchsuk; P. Opaprakasit; and W. Siriwatwechakul, Synthesis and characterizations of functionalized polylactic acid copolymers, World Academy of Science, Engineering and Technology, 2012, 65: 1380-1383. (Originally presented in the XXXII International Conference on Finance and Business Economics (ICFBE 2012), 29-30 May 2012, Tokyo, Japan.)
  6. Nakruangsri N., Sukpuang P., Petchsuk A., Opaprakasit P. and Opaprakasit M. Glycolysis Reaction as a Chemical Recycling Process for Poly(lactic acid), Proceedings of the 2nd International Conference on Green and Sustainable Innovation (ICGSI 2009) [CD-ROM], Chiang Rai, Thailand, December 2-4, 2009.
  7. Sriromreun P., Petchsuk A., Opaprakasit M. and Opaprakasit P. Miscibility and Hydrolytic Degradability of Poly(Ethylene Terephthalate-co-Lactic Acid) (PET-co-PLA)/Poly(butylene succinate) (PBS) Blends, Proceedings of the 2nd International Conference on Green and Sustainable Innovation (ICGSI 2009) [CD-ROM], Chiang Rai, Thailand, December 2-4, 2009.
  8. Sukpuang P., Petchsuk A., Opaprakasit P. and Opaprakasit M. Lactic Acid-Ethylene Terephthalate Copolymers from Glycolyzed Products: Synthesis and Characterizations, Proceedings of the 2nd International Conference on Green and Sustainable Innovation (ICGSI 2009) [CD-ROM], Chiang Rai, Thailand, December 2-4, 2009.
  9. Supmak W., Petchsuk A., Opaprakasit P., Sharp A. and Siriwatwechakul W. Synthesis and Characterizations of Copolymers of Lactide and Glycidyl Methacrylate: Effects of Synthesis Conditions, Proceedings of the 2nd International Conference on Green and Sustainable Innovation (ICGSI 2009) [CD-ROM], Chiang Rai, Thailand, December 2-4, 2009.
  10. Kitsatienkun S., Laoratanakul P. and Opaprakasit P. Removal of Heavy Metals from Wastewater by Chitosan Composite Biosorbent: Adsorption Mechanisms, Proceedings of the World Renewable Energy Congress 2009 Asia: The 3rd International Conference on Sustainable Energy and Environment (SEE 2009) [CD-ROM], Bangkok, Thailand, May 19-22, 2009, 1275-1280.
  11. Kordach A., Petchsuk A., Opaprakasit M. and Opaprakasit P. Preparation and Characterization of Controlled-Release Materials for Urea Fertilizer from Poly(Lactic Acid). Proceedings of the World Renewable Energy Congress 2009 Asia: The 3rd International Conference on Sustainable Energy and Environment (SEE 2009) [CD-ROM], Bangkok, Thailand, May 19-22, 2009, 1281-1286.
  12. Kitsatienkun S., Laoratanakul P. and Opaprakasit P. Chitosan-coated Alumina as Cr(VI) Removal Materials. Proceedings of the Pure and Applied Chemistry International Conference (PACCON 2009), Phitsanulok, Thailand, January 14-16, 2009, 156-159.
  13. Kordach A., Petchsuk A., Opaprakasit M. and Opaprakasit P. Preparation and Properties of Controlled-release Materials for Urea Fertilizer from Copolyester and Its Blends. Proceedings of the Pure and Applied Chemistry International Conference (PACCON 2009), Phitsanulok, Thailand, January 14-16, 2009, 178-181.
  14. Sriromreun P., Petchsuk A., Opaprakasit M., Tangboriboonrat P. and Opaprakasit P. Properties and Degradability of Poly(Ethylene Terephthalate-co-Lactic Acid) Copolymer and Its Blends. Proceedings of the Pure and Applied Chemistry International Conference (PACCON 2009), Phitsanulok, Thailand, January 14-16, 2009, 570-573.
  15. Sukpuang P., Petchsuk A., Opaprakasit P. and Opaprakasit M. Synthesis and Characterizations of Poly(Lactic Acid-co-Ethylene Terephthalate) from Glycolysed Products. Proceedings of the Pure and Applied Chemistry International Conference (PACCON 2009), Phitsanulok, Thailand, January 14-16, 2009, 582-585.
  16. Opaprakasit P. andLawtrakul L. Intra-molecular Hydrogen Bonding in Calixarene-like Structures of Phenolic Resins: Phenolic Analogue Models, Proceedings of Pure and Applied Chemistry International Conference 2008 (PACCON 2008) [CD-ROM], Bangkok, Thailand, January 30 February 1, 2008, 675-680.
  17. Phattanaphibul T., Opaprakasit P., Koomsap P., and Tangwarodomnukun V., Preparing Biodegradable PLA for Powder-Based Rapid Prototyping, Proceedings of the 8th Asia Pacific Industrial Engineering & Management System and 2007 Chinese Institute of Industrial Engineers Conference (APIEMS & CIIE2007) [CD-ROM}, Kaohsiung, Taiwan, December 9- 12, 2007.
  18. Tangwarodomnukun V., Koomsap P., Opaprakasit P., and Phattanaphibul T., Coloring Polylactide Powder for Multicolor Rapid Prototyping, Proceedings of the 8th Asia Pacific Industrial Engineering & Management System and 2007 Chinese Institute of Industrial Engineers Conference (APIEMS & CIIE2007) [CD-ROM}, Kaohsiung, Taiwan, December 9-12, 2007.
  19. Opaprakasit P., Opaprakasit M., Tangboriboonrat P., Crystallization Behaviors of Polylactide and Its Enantiomeric Blends, Proceeding of the 2nd International Conference on Advances in Petrochemicals and Polymers (ICAPP2007), Bangkok, Thailand, June 25 -28, 2007.
  20. Opiso, E.M., Babel, S., Opaprakasit, P., Removal of Cr (VI) from Synthetic Wastewater by Volcanic Ash Soil, Proceedings of the International Conference on Green and Sustainable Innovation (ICGSI2006), 2006, Chiang Mai, Thailand, 338-344.
  21. Risdiyono, Opaprakasit, P., Koomsap, P. (2006). Modifying Rapid Prototyping Technique for Natural Rubber Parts, The 7th Asia Pacific Industrial Engineering and Management Systems Conference (APIEMS 2006), Bangkok, Thailand, December 17 20, 2006, 2155- 2158.
  22. Risdiyono, Opaprakasit, P., Koomsap, P. (2006). Enhancing Natural Rubber’s Property For Rapid Prototyping, Proceedings of the 8th International Conference on Industrial Management ICIM2006 (Qingdao, China), 2006, 1178-1183
  23. 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, Proceedings of the International Conference on Smart Materials. Chiangmai, Thailand, December, 2004.
  24. Opaprakasit P., Kanchanasopa M., Malkov S., Runt J.P., Painter P.C., Study of Crystallization of Poly(lactide)s and Their Racemic Crystal Structure (Stereocomplex), Employing Two-Dimensional FTIR Correlation Spectroscopy, Proceedings of the Third Thailand Materials Science and Technology Conference. Bangkok, Thailand, August, 2004.
  25. Opaprakasit, P.; Painter, P.C.; and Coleman, M.M., Dissolution, Swelling Properties, and Complex Formation of Clays in NMP/CS2 Mixed Solvents, Papers Am. Chem. Soc., Div. Fuel. Chem. 2004.
  26. Opaprakasit, P.; Painter, P.C.; Coleman, M.M.; and Scaroni, A.W., Ionomer-Like Structures and Their Role in the Pyridine-Extractability of Argonne Premium Coals, Papers Am. Chem. Soc., Div. Fuel. Chem. 2001, 331-333.
  27. Painter, P.C.; Opaprakasit, P.; Sobkowiak, M.; and Scaroni, A, Phenolic Resins as Model for the Structure of Coals, Papers Am. Chem. Soc. Div., Fuel. Chem. 1999, 596- 600.
  28. Opaprakasit, P.; and Chan, H.S.O., Conducting Polyaniline Coated Inorganic Materials, Science Research Congress, National University of Singapore, Singapore, 1992.

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