Synthesis and Characterization of Chiral azo LCPs

7th Annual International Conference on Materials Science and Engineering

Zhang, Xuesong^1 ; Huang, Yuejiao^1 ; He, Xiaozhi^1

Department of Science, Northeastern University, NO. 3-11, Wenhua Road, Shenyang, Heping District, China^1

关键词: Cholesteryl esters;    Grandjean;    Mesogenic properties;    Mesogenics;    Polarized optical micrographs;    Precursor polymers;    Side chain liquid crystal polymers;    Synthesis and characterizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/562/1/012080/pdf
DOI  :  10.1088/1757-899X/562/1/012080

来源: IOP

【 摘 要 】

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.