中胚层
液晶
材料科学
电场
光致聚合物
各向异性
各向同性
单体
电介质
化学物理
分子
方向(向量空间)
领域(数学)
Crystal(编程语言)
聚合物
结晶学
光学
复合材料
液晶
有机化学
光电子学
几何学
物理
量子力学
化学
程序设计语言
纯数学
计算机科学
数学
作者
R. A. M. Hikmet,J.A. Higgins
标识
DOI:10.1080/02678299208029126
摘要
Abstract Lightly cross-linked anisotropic networks with uniaxial and π/2 twisted orientations were produced by photopolymerization of monotropic mixtures containing liquid crystal mono and diacrylates. In this way the polymer backbone was immobilized and became decoupled from the motion of the mesogenic side groups. The networks showed very good reversibility and even after becoming isotropic, upon cooling, the initial orientation was recovered. In the same way, in the presence of electric fields the mesogenic groups could be reoriented in the direction of the electric field, reverting back to the initial orientation on removal of the field at a rate comparable with those observed in the monomeric state. Combining viscoelastic measurements with the dielectric behaviour of the monomeric liquid crystal and the anisotropic network, a comparison between the internal and bulk rotational viscosities was also made.
科研通智能强力驱动
Strongly Powered by AbleSci AI