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Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)

Changsha,China,10.16-10.18,2010

ISBN: 978-1-935068-41-9 Scientific Research Publishing, USA

E-Book 2313pp Pub. Date: October 2010

Category: Chemistry & Materials Science

Price: $360

Title: Synthesis and Mesomorphic Behavior of Combined Type Liquid Crystalline Polymer Based on Hydroxypropyl Cellulose
Source: Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK) (pp 2221-2224)
Author(s): Tian-hui Hu, Zhuzhou Times New Material Technology Co., Ltd, Zhuzhou 412007, China
Hai-liang Zhang, Institute of Polymer Science, College of Chemistry, Xiangtan University, Xiangtan 411105, China
Kai-huan Deng, Zhuzhou Times New Material Technology Co., Ltd, Zhuzhou 412007, China
Abstract: The combined type liquid crystalline polymer based on hydroxypropyl cellulose (AzoHPC) was successfully synthesized via DCC coupling. The molecular characterizations of the resultant polymer were performed with proton nuclear magnetic resonance (1H NMR), fourier transform infrared spectroscopy (FT-IR) and gel permeation chromatography (GPC). The thermal stability was investigated via thermogravimetric analysis (TGA). The phase transitions and liquid-crystalline behaviors of these polymers were investigated by differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD). The results indicate that the supramolecular structure of AzoHPC is consisted of a large scale ordered rectangular structure constructed by hydroxypropyl cellulose backbone and a relatively small scale ordered structure formed by azobenzene side chains.
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