학회 |
한국공업화학회 |
학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
권호 |
19권 1호 |
발표분야 |
석유화학윤활유_포스터 |
제목 |
Pentablock Copolymers via Sequantial Ring Opening Transesterification Polymerization (ROTEP) of L- and D-Lactide and Poly(ε-decalactone) macroinitiator |
초록 |
We demonstrated that the properties of renewable thermoplastic elastomers could be modulated by changing the stereochemistry of the polylactide end blocks. A series of poly(lactide)-poly(ɛ-decalactone)-poly(lactide) triblock copolymers producing hard domains using 1) amorphous poly(D,L-lactide), 2) enantiopure poly(D-lactide) or poly(L-lactide) for single crystalline, 3) equivalently neighboring enatiomeric poly(D-lactide) and poly(L-lactide), which was called stereoblock(sb) configuration and 4) symmetric blends of the two semi-crystalline PLA for stereocomplex(sc) crystallization were synthesized via controlled and sequential ring-opening polymerization of L-lactide and/or D-lactide using a 100 kg mol–1 α,ω-dihydroxyl poly(ɛ-decalactone). |
저자 |
이경찬1, 이상준1, 김건중2, 김영운1, 신지훈1
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소속 |
1한국화학(연), 2인하대 |
키워드 |
PLA; Thermoplastic Elastomer (TPE); Block Copolymer
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E-Mail |
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