Open AccessSynthesis and Characterization of Chiral azo LCPs
Author(s) -
Xuesong Zhang,
Yue-Jiao Huang,
Xiaodong He
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/562/1/012080
Subject(s) - thermotropic crystal , mesogen , differential scanning calorimetry , liquid crystal , polymer , benzoic acid , polymer chemistry , side chain , materials science , crystallography , organic chemistry , chemistry , liquid crystalline , physics , optoelectronics , thermodynamics
Precursor polymer MP series were synthesized by 4-allyloxybenzoic acid cholesteryl ester (M) and 4- hydroxyphenyl 4- (propionyloxy) benzoate (P). We obtained novel themotropic side-chain liquid crystal polymer MPZ series by esterification between MP series and 4-((4-ethoxyphenyl) diazenyl) benzoic acid (Z). Differential scanning calorimetry (DSC) was used to measure the thermal properties of those polymers, and the mesogenic properties were characterized by polarized optical micrograph (POM), DSC and X-Ray. MP series exhibited yellow, green, blue and purple Grandjean textures. MPZ series also showed colorful Grandjean textures. They exhibited thermotropic liquid crystal properties in a broad mesogenic region.