| THERMAL DEGRADATION OF THERMOTROPIC LIQUID CRYSTALLINE TERPOLYESTERS BASED ON VANILLIC ACID, p-HYDROXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE ) |
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| 作者姓名： | 李新贵 黄美荣 关桂荷 孙桐 |
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| 作者单位： | Institute of Membrane Separation Engineering，Tianjin Institute of Textile Science and Technology，Tianjin 300160，Institute of Membrane Separation Engineering，Tianjin Institute of Textile Science and Technology，Tianjin 300160，Department of Chemical Fiber Technology，China Textile University，Shanghai 200051，Department of Chemical Fiber Technology，China Textile University，Shanghai 200051 |
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| 摘 要： | Nine thermotropic liquid crystalline terpolyesters based on vaniUic acid(V), p-hydroxybenzoic acid(H) and poly(ethylene terephthalate)(E) were investigated by thermogravimetry to ascertain their thermostability and the kinetic parameters for thermal degradation. Overall activation energy data of the degradation had been calculated over the range 5 ～70% weight loss. The temperatures and the activation energy of the degradation lie in the ranges of 384 ～394 ℃at a heating rate of 1℃/min and 176 ～205 KJ/mol at the weight loss of 5%, respectively, which suggests that the terpolyesters have good thermostability.
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| 收稿时间： | 1992-03-01 |
THERMAL DEGRADATION OF THERMOTROPIC LIQUID CRYSTALLINE TERPOLYESTERS BASED ON VANILLIC ACID, p-HYDROXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE )* |
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| LI Xingui,HUANG Meirong,GUAN Guihe,SUN Tong.THERMAL DEGRADATION OF THERMOTROPIC LIQUID CRYSTALLINE TERPOLYESTERS BASED ON VANILLIC ACID, p-HYDROXYBENZOIC ACID AND POLY(ETHYLENE TEREPHTHALATE )[J].Chinese Journal of Polymer Science,1993,0(3):230-235. |
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| Authors: | LI Xingui HUANG Meirong GUAN Guihe SUN Tong |
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| Institution: | Institute of Membrane Separation Engineering; Tianjin Institute of Textile Science and Technology; Tianjin; Department of Chemical Fiber Technology; China Textile University; Shanghai |
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| Abstract: | Nine thermotropic liquid crystalline terpolyesters based on vaniUic acid(V), p-hydroxybenzoic acid(H) and poly(ethylene terephthalate)(E) were investigated by thermogravimetry to ascertain their thermostability and the kinetic parameters for thermal degradation. Overall activation energy data of the degradation had been calculated over the range 5 ～ 70% weight loss. The temperatures and the activation energy of the degradation lie in the ranges of 384 ～ 394 ℃ at a heating rate of 1℃/min and 176 ～ 205 KJ/mol at the weight loss of 5%,respectively,which suggests that the terpolyesters have good thermostability. |
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| Keywords: | Thermotropic liquid crystal Vanillic acid Terpolyester Thermogravimetry Thermal degradation Thermostability Kinetic analysis |
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