当前位置:群英聚首 > 论文著作 > 正文
Cellulose derivative-based cholesteric networks
来源:周雪松副研究员个人网站 发布日期:2009-01-06

Ethyl-cyanoethyl cellulose [(E-CE)C] /acrylic acid (AA) solution could form cholesteric networks when the AA was quickly photopolymerized. The cholesteric structure in the solution was changed during the polymerization but the variation of the cholesteric order could be depressed by crosslinking of the system. The dependence of lambda(max) for the cholesteric phase on both the crosslinker concentration and the polymerization temperature was studied by UV-Vis spectrometry. It was found that the cholesteric pitch variation is decreased with increasing the concentration of the crosslinking reagent and the water sensitivity of the cholesteric network is effectively suppressed and dependent on the types of crosslinker. The pitch of cholesteric network was decreased sharply with increasing the polymerization temperature, due to the increase of the volume shrinkage of the solvent during the polymerization.

Copyright © 2005 Polymer.cn All rights reserved
中国聚合物网 版权所有
经营性网站备案信息

京公网安备11010502032929号

工商备案公示信息

京ICP证050801号

京ICP备12003651号