OPTICAL-ACTIVITY OF POLY-L-LACTIC ACID

被引:5
作者
ASAHI, T [1 ]
FUKASE, H [1 ]
ICHIKI, M [1 ]
KOBAYASHI, J [1 ]
FUKADA, E [1 ]
机构
[1] INST PHYS & CHEM RES,WAKO,SAITAMA 351,JAPAN
关键词
D O I
10.1080/00150199008211436
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Simultaneous measurements of optical activity and birefringence have been made for the first time on poly-L-lactic acid (PLLA), which is a well-known piezoelectric and biodegradable polymer. Optical gyration of PLLA films, one stretched 2.5 times the other 6 times as long as the original ones, displayed different temperature dependence in the higher and lower temperature regions and changed the sign in the lower one. These facts suggest a conformational change to take place in PLLA at some temperature in the lower one. © 1990, Taylor & Francis Group, LLC. All rights reserved.
引用
收藏
页码:339 / 342
页数:4
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