吉林大学学报（理学版）2011，Vol.49Issue(2)：304-308,5.
在一种新的聚合物网络液晶材料上刻写相光栅及其特性
Characteristics of a New Polymer Network Liquid Crystal Material with Phase Grating
摘要
Abstract
The authors studied a new polymer network liquid crystal (PNLC) system of the polymer dissolved in N-(4-methoxybenzal)-p-butylaniline (MBBA) liquid crystal. The dissolved polymer which did not require light radiation, formed spontaneously a polymer network structure in the system. Phase grating was engraved on the polymer network via double-beams interference method. The differences of the conditions and morphologies of the Williams domains in the MBBA liquid crystal before and after doping the polymer were compared.Polymer network structure made the signal frequency of the formation of Williams domains in the MBBA liquid crystal raise from 50.3 Hz to 622 Hz. In the case of without doping the polymer, Williams domains in the MBBA liquid crystal begin to disappear when the signal frequency is 65.9 Hz, but Williams domains in the MBBA liquid crystal don' t disappear when the polymer network structure exists, hence improving the stability of liquid crystal orientation. Moreover, the phase grating engraved on the polymer network and the phase grating formed in the MBBA liquid crystal under the influence of an electric field don' t interfere with each other.关键词
聚合物网络液晶/相分离/Williams畴/相光栅Key words
polymer network liquid crystal/ phase separation/ Williams domain/ phase grating分类
数理科学引用本文复制引用
孔祥忠,徐则达..在一种新的聚合物网络液晶材料上刻写相光栅及其特性[J].吉林大学学报（理学版）,2011,49(2):304-308,5.基金项目
国家自然科学基金(批准号:11074019). （批准号:11074019）
