Synthesis and Characterization of Hyperbranched Liquid Crystalline Polymer

Abstract:

Hyperbranched liquid crystalline polymer (HLCP) were prepared by pentaerythritol with 1,2,4-benzenetricarboxylic anhydride(BTCA) and p-hydroxy benzoic acid. The thermotropic properties, the melting point (Tm) and the isotropization temperature (Ti) of the synthesized HLCP were characterized by differential scanning calorimetry (DSC), fourier transform infrared spectroscopy (FTIR) and polarizing optical microscopy (POM). It showed that the new reactive thermotropic liquid polymer containing polyester mesogenic units exhibited thermotropic liquid crystalline properties between 140°C and 230°C.

• Periodical: Key Engineering Materials (Volumes 428-429)
• Pages: 98-101
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.428-429.98
• Online since: January 2010
• Authors: Chen Xi Zhang, Shao Rong Lu, Jian Feng Ban
• Keywords: Hyperbranch , Liquid Crystalline, Phase Transition Temperature

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