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Synthesis and Non-isothermal Crystallization Behavior of Poly(glycolide-co-${\varepsilon}$-caprolactone) Block Copolymer  

Choi, Song-Yeon (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
Jee, Min-Ho (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
Park, Nam-Jib (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
Song, Seung-Ho (R&D Team, Meta-Biomed Co. Ltd.)
Choi, Kyo-Chang (R&D Team, Meta-Biomed Co. Ltd.)
Baik, Doo-Hyun (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
Publication Information
Textile Science and Engineering / v.48, no.1, 2011 , pp. 51-59 More about this Journal
Abstract
Poly(glycolide-co-${\varepsilon}$-caprolactone)(PGCL) block copolymers were synthesized by two step polymerization using glycolide and ${\varepsilon}$-caprolactone as starting materials. The chain-microstructures of the resulting block copolymers were characterized by $^1H-NMR$. The structure and thermal properties of the PGCL block copolymer were strongly affected by the chain-microstructure of the prepolymer. The non-isothermal crystallization behavior of the PGCL block copolymers was examined at various cooling rates and analyzed with modified-Avrami and Ziabicki equations. The PGCL block copolymer with a lower degree of randomness in the prepolymer block had a higher crystallization temperature and faster crystallization rate, which suggests that differences in chain-microstructure of the PGCL prepolymer can affect the crystallization characteristics, such as crystallinity and crystallization rate.
Keywords
poly(glycolide-co-${\varepsilon}$-caprolactone)(PGCL); chain-microstructure; non-isothermal crystallization;
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