PHOTORESPONSIVE PROPERTIES OF OPTICALLY-ACTIVE (METH)ACRYLIC HOMOPOLYMERS WITH PENDENT L-LACTIC ACID OR L-ALANINE RESIDUES CONNECTED TO 4-AMINOAZOBENZENE

被引：22

作者：

ALTOMARE, A

SOLARO, R

ANGIOLINI, L

CARETTI, D

CARLINI, C

机构：

[1] UNIV PISA,DIPARTIMENTO CHIM & CHIM IND,I-56126 PISA,ITALY

[2] UNIV BOLOGNA,DIPARTIMENTO CHIM IND & MAT,I-40136 BOLOGNA,ITALY

来源：

POLYMER | 1995年 / 36卷 / 20期

关键词：

PHOTOCHROMIC CHIRAL POLYMERS; AZOBENZENE-CONTAINING POLYMERS; CIRCULAR DICHROISM;

D O I：

10.1016/0032-3861(95)99775-P

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The photochromic behaviour and photoisomerization kinetics of optically active homopolymers of trans-(S)-4-N-(2-methacryloyloxypropanoyl)aminoazobenzene and trans-(S)-4-N-(2-acryloyloxypropanoyl)aminoazobenzene were studied by u.v. spectroscopy under irradiation at 366 nm. The resulting data are compared with those obtained for the corresponding low molecular weight structural models trans-(S)-4-N-(2-pivaloyloxypropanoyl)aminoazobenzene and trans-(S)-4-N-(2-isobutyroyloxypropanoyl)aminoazobenzene. The photoresponsive behaviour of the above polymeric systems was also investigated by circular dichroism measurements at various extents of photoisomerization. The results are discussed in terms of the structural requirements of the macromolecules.

引用

页码：3819 / 3824

页数：6

共 19 条

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