期刊论文

Wang, Bai

Li, Y (reprint author), Dalian Univ Technol, Sch Chem Engn, Dept Polymer Sci & Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China.

Ma, Hong Wei,Wang, Yan Shai,Li, Yang

2013-08-05

CHEMISTRY LETTERS

SCIE、Scopus

J

42

8

915-917

0366-7022

The paper introduces a simple method to synthesize novel liquid crystalline polystyrene (LC-PS) containing a mesogenic unit at a side chain by hydrosilylation through poly[(4-vinylphenyl)dimethylsilanol] (PVPDMS) and liquid crystal monomer cholesteryl 4-[4-(undec-10-enoyloxy)benzoyloxy]phenyladipate (M). The LC-PS had high purity, high molecular weight, narrow distribution, good thermal stability, and typical thermotropic liquid crystallinity (S-A phase), as shown by (HNMR)-H-1 analyses, size exclusion chromatography (SEC), thermogravimetry analysis (TGA), differential scanning calorimetry (DSC), polarizing optical microscopy (POM), and X-ray diffraction (XRD). The glass-transition temperature (T-g) of LC-PS was much lower than that of PVPDMS, while the clearing point (T-i) of LC-PS significantly increased compared with M.