Citation: Li Yan Liang, Shao Ping Ren, Yi Quan Zheng, Man Geng Lu. Cure reaction and phase behavior of liquid crystalline epoxides-anhydride systems[J]. Chinese Chemical Letters, ;2007, 18(2): 225-228. doi: 10.1016/j.cclet.2006.12.040 shu

Cure reaction and phase behavior of liquid crystalline epoxides-anhydride systems

Li Yan Liang ^a,b,c, ,
Shao Ping Ren ^a,b,c ,
Yi Quan Zheng ^a,b,c ,
Man Geng Lu ^a,b

a Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China;
b Key Laboratory of Polymer Materials for Electronics, Guangdong 510650, China;
c Graduate School of the Chinese Academy of Sciences, Beijing 100049, China

Received Date: 10 October 2006

Fund Project: The author would like to thank the National Natural Science Foundation of China (No. 20574072) and Natural Science Foundation of Guangdong Province (No. 04101248) for financial support.

A series of novel liquid crystalline epoxides with lateral substituents were cured with anhydrides and the cure kinetics was investigated by non-isothermal DSC technique. The results showed that the lengths of lateral substituents have great effect on the value of E_a. The curing reaction became less active, when the liquid crystalline epoxides have long lateral substituents and were controlled by diffusion at the late stage of cure. A nematic structure was observed by POM and XRD.
- Liquid crystalline epoxy resin,
- Anhydride,
- Nematic phase,
- Lateral substituent
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