Title: Visible Light Responsive Liquid Crystal Polymers Containing Reactive Moieties with Good Processability

Author: Yuyun Liu, Wei Wu, Jia Wei*, Yanlei Yu*

Journal: ACS Appl. Mater. Interfaces, 2017, 9(1), 782-789.

Abstract:

Two types of novel reactive linear liquid crystal polymers (LLCPs) with different azotolene concentrations have been synthesized and processed into films and fibers by solution and melting processing methods. Then, the LLCPs in the obtained monodomain fiber and polydomain film were easily cross-linked with difunctional primary amines. The resulted cross-linked liquid crystal polymers (CLCPs) underwent reversible photoinduced bending and unbending behaviors in response to 445 and 530 nm visible light at room temperature, respectively. The post-cross-linking method provides a facile way to prepare the CLCP films and fibers with different shapes from LLCPs, which can be processed by traditional melting and solution methods.

Fulltext Link: https://pubs.acs.org/doi/abs/10.1021/acsami.6b11550

Two types of novel reactive linear liquid crystal polymers (LLCPs) with different azotolene concentrations have been synthesized by solution and melting processing methods and have been processed into films and fibers via spin-coating or casting technology followed by a post-cross-linking reaction with difunctional primary amines. The resulted cross-linked liquid crystal polymers (CLCPs) underwent reversible photoinduced bending and unbending behaviors in response to 445 and 530 nm visible light at room temperature, respectively. The post-cross-linking method provides a facile way to prepare the CLCP films and fibers with different shapes from LLCPs, which can be processed by traditional melting and solution methods.