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Volume 8, Issue 2 (Suppl) Chem Sci J 2017
ISSN: 2150-3494 CSJ, an open access journal Euro Chemistry 2017
May 11-13, 2017
May 11-13, 2017 Barcelona, Spain
4th European Chemistry Congress
Min-Young Lyu et al., Chem Sci J 2017, 8:2(Suppl)
Comparison of thermal and physical properties of fossil and bio-based polycarbonates
Min-Young Lyu1, Jung Hyun Park1, Hyung Jin Nho2, Myung Sool Koo2 and Sung Hwan Cho2
1Seoul National University of Science & Technology, South Korea
2Samyang Central R & D Center, South Korea
Bio-based polymer has advantages as an environmentally friendly material. It is obtained from corn or other plants. Fossil-based
polycarbonate (PC) is polymerized using bisphenol-A (BPA), whereas bio-based PC is polymerized using isosorbide monomer.
The thermal and physical properties have been studied for bio-based and fossil-based PC. The thermal properties were measured by
differential scanning calorimetry, differential thermal analysis, and thermal gravimetric analysis. Bio-based PC showed a low glass
transition temperature and weak thermal resistance compared with those characteristics of fossil-based PC. Bio-based PC exhibited
a higher optical property, which was verified by transmittance, haze, and birefringence. Bio-based PC showed higher transmittance
and lower haze than those characteristics of fossil-based PC. The birefringence of injection molded specimens of bio-based and fossil-
based PC were also compared and the bio-based PC showed lower birefringence. Bio-based PC shows weak thermal resistance than
that of fossil-based PC, whereas bio-based PC shows higher optical characteristics than those of fossil-based PC.
Biography
Min-Young Lyu has completed his PhD at the age of 33 years from The University of Akron, Ohio, USA. He is the professor in the Department of Mechanical
System Design Engineering at the Seoul National Univiersity of Science and Technology. He was a chief researcher in Samyang Central R&D Center and a
associate engineer in LG Production Research Center. He has published more than 90 papers in the world and has been serving as an editorial board member of
Polymer(Korea) and Elastomers & Composites.