Photoinduced chirality in azobenzene-containing polymer systems
Photoinduced chirality in azobenzene-containing polymer systems
复制标题
DOI：
10.1039/b702835k
复制
发表时间：
2007-01-01
影响因子：
3.3
通讯作者：
Takezoe, Hideo
中科院分区：
文献类型：
--
作者：
Choi, Suk-Won;Kawauchi, Susumu;Takezoe, Hideo
本文综述了在主链或侧链含有光致发色团的聚合物体系中，圆偏振光（CPL）诱导的手性现象。在侧链聚合物体系中，光诱导手性来自超结构手性，即，螺旋结构，通过聚集侧链中的非手性偶氮苯分子。另一方面，在主链聚合物体系中，宏观上诱导的手性可以来源于主链中发色团的单独手性。CPL照射与光致发色团的聚合物薄膜，以产生宏观手性已被实现为潜在的有用的光开关，光存储和光驱动器件的发展。
In this article, we will review the phenomena on circularly-polarized-light (CPL)-induced chirality in polymeric systems with photochromophores in their side-chain or main-chain. In the side-chain polymeric systems, the photoinduced chirality arises from superstructural chirality, i.e., helix structure, via aggregating of achiral azobenzene molecules in side chains. On the other hand, in the main-chain polymeric system, the macroscopically induced chirality can originate from individual chirality of chromophores in their main-chain backbone. The CPL irradiation on polymeric films with photochromophores to produce macroscopic chirality has been realized as potentially useful in the development of optical-switching, optical-storage, and light-driven devices.