The UV polymerisation temperature dependence of polymer-dispersed liquid crystals based on epoxies/acrylates hybrid polymer matrix components
The UV polymerisation temperature dependence of polymer-dispersed liquid crystals based on epoxies/acrylates hybrid polymer matrix components
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DOI：
10.1080/02678292.2012.698755
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发表时间：
2012-07
期刊：
影响因子：
2.2
通讯作者：
Ping Song;H. Cao;Feifei Wang;Fang Liu;Jingjing Wang;M. Ellahi;Fasheng Li;Huai Yang
中科院分区：
文献类型：
--
作者：
Ping Song;H. Cao;Feifei Wang;Fang Liu;Jingjing Wang;M. Ellahi;Fasheng Li;Huai Yang
杂化聚合物形成具有不同反应性基团和固化机理的单体的组合，协同地联合收割机结合了两种组成均聚物的性质。本文以环氧树脂/丙烯酸酯为杂化聚合物基体，制备了聚合物分散液晶（PDLC）薄膜。研究了基于环氧树脂/丙烯酸酯混合聚合物基体的PDLC薄膜的微观结构和电光性能与紫外聚合温度的关系。PDLC膜的电光性能强烈地依赖于PDLC膜的液晶（LC）域尺寸和形态，这可以通过可固化单体的聚合速率和LC分子在膜制备过程中的扩散速率来控制。可固化单体的聚合速率和LC分子的扩散速率指数地取决于UV聚合温度。因此，本研究报告的方法的一个例子，以制备基于混合聚合物基体的PDLC膜，并获得具有良好的电光性能的PDLC膜。
Hybrid polymers, which form a combination of monomers with different reactive groups and curing mechanisms, synergistically combine the properties of the two constituent homopolymers. In this paper, polymer-dispersed liquid crystal (PDLC) films using epoxies / acrylates as hybrid polymer matrix components were prepared. The UV polymerisation temperature dependence of the microstructure and the electro-optical properties of PDLC films based on epoxies / acrylates hybrid polymer matrix had been studied. The electro-optical properties of PDLC films depend strongly on the liquid crystal (LC) domain size and morphology of PDLC films, which could be controlled by the polymerisation rate of the curable monomers and the diffusion rate of the LC molecules during the film preparation process. The polymerisation rate of the curable monomers and the diffusion rate of the LC molecules depend exponentially on the UV polymerisation temperature. Therefore, this research reports an example of methods to prepare PDLC films based on a hybrid polymer matrix and obtain PDLC films which possess good electro-optical properties.