引用本文:
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
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
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
Cure reaction and phase behavior of liquid crystalline epoxides-anhydride systems
摘要:
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 Ea. 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.
English
Cure reaction and phase behavior of liquid crystalline epoxides-anhydride systems
Abstract:
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 Ea. 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.
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Key words:
- Liquid crystalline epoxy resin
- / Anhydride
- / Nematic phase
- / Lateral substituent
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