Optical activity of poly-l-lactic acid

Toru Asahi; Haruko Fukase; Masaaki Ichiki; Jinzo Kobayashi; Eiichi Fukada

doi:10.1080/00150199008211436

Optical activity of poly-l-lactic acid

Toru Asahi, Haruko Fukase, Masaaki Ichiki, Jinzo Kobayashi, Eiichi Fukada^*

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	339-342
Number of pages	4
Journal	Ferroelectrics
Volume	109
Issue number	1
DOIs	https://doi.org/10.1080/00150199008211436
Publication status	Published - 1990 Sept 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150199008211436

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AU - Asahi, Toru

AU - Fukase, Haruko

AU - Ichiki, Masaaki

AU - Kobayashi, Jinzo

AU - Fukada, Eiichi

PY - 1990/9/1

Y1 - 1990/9/1

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AB - 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.

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Optical activity of poly-l-lactic acid

Abstract

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