红外光谱结合线阵列检测技术研究聚合物分散液晶膜分子取向  

Infrared Spectroscopy with Line Array Detection Investigation on Molecular Orientation of Polymer Dispersed Liquid Crystal

作　　者：孙国恩[1] 滕红[2] 张春玲[1] 窦艳丽[1] 徐经伟[3] 

机构地区：[1]吉林大学材料科学与工程学院教育部汽车重点实验室,长春130025 [2]吉林大学第二医院妇产科,长春130041 [3]中国科学院长春应用化学研究所国家电化学和光谱研究分析中心,长春130022

出　　处：《分析化学》2010年第8期1182-1185,共4页Chinese Journal of Analytical Chemistry

基　　金：吉林大学科学前沿与交叉学科创新项目(No.421030322416)资助

摘　　要：采用偏振红外光谱和变温红外光谱研究聚合物分散液晶膜中液晶分子取向随外加电场及温度的变化。利用线阵列检测技术表征了聚合物与液晶界面处的成分分布。结果表明,线阵列检测技术能够快速而直观地给出成分分布图,通过该成分分布图可以解释PDLC在温度场作用下分子取向的变化。Polarized infrared spectroscopy and temperature dependent FTIR spectroscopy were used to study molecular orientation of different polymer dispersed liquid crystal films. Line array detection technology was used to study the interface component between the polymer and liquid crystal. Measurements of absorbance changes of the representative IR bands as a function of the polarization angle show that the phase transition with temperature increasing was gradually. The distribution figure of the interface component can be obtained by line array detection technology rapidly.

关 键 词：红外光谱 线阵列检测 聚合物分散液晶 分子取向 

分 类 号：O631.2[理学—高分子化学]