Thermal Behavior and Liquid Crystalline Property of p-Hydroxybenzoic Acid/Poly(butyleneterephthalate) Copolyester

Chinese Journal of Applied Chemistry ›› 1994, Vol. 0 ›› Issue (5): 95-97.

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Thermal Behavior and Liquid Crystalline Property of p-Hydroxybenzoic Acid/Poly(butyleneterephthalate) Copolyester

Wang Yong, Wu Dacheng

Textile College, Chengdu University of Science and Technology, Chengdu 610065

Received:1993-11-01 Revised:1994-04-19 Published:1994-10-10 Online:1994-10-10

Abstract

Abstract: Thermal transitions and liquid crystalline properties of copolyesters based on poly(butyleneterephthalate)(PBT) and p-hydroxybenzoic acid(PHB ) were examined by DSC and hot stage polarizing microscopy. The results showed a multi-phase transition associated with PBT-rich domain and PHB-ricli domain in the copolyester. Typical nematic liquid crystalline phase of the copolyesters appeared when PHB content ranged in 20%～80%.

Key words: PHB/PBT copolyester, phase transition, liquid crystalline property

Wang Yong, Wu Dacheng. Thermal Behavior and Liquid Crystalline Property of p-Hydroxybenzoic Acid/Poly(butyleneterephthalate) Copolyester[J]. Chinese Journal of Applied Chemistry, 1994, 0(5): 95-97.

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Thermal Behavior and Liquid Crystalline Property of p-Hydroxybenzoic Acid/Poly(butyleneterephthalate) Copolyester

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