Studies on the Rigid-Rigid Block Copolymers(Ⅲ)──Synthesis and Properties of PEEK/HTA Block Copolymers

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (1): 145.

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Studies on the Rigid-Rigid Block Copolymers(Ⅲ)──Synthesis and Properties of PEEK/HTA Block Copolymers

CAO Jun-Kui, SU Wen-Cheng, ZHOU Wen-Sheng, ZHOU Feng-Qi, WU Zhong-Wen

Department of Chemistry, Jilin University, Changchun, 130023

Received:1993-01-16 Revised:1993-06-08 Online:1994-01-24 Published:1994-01-24

Abstract

Abstract: A series of rigid-rigid block copolymers composed of poly(etheretherketone)(PEEK) and poly(arylethersulfone) with biphenyl structure(HTA) were synthesized by polycondensation.The characterization,thermal properties and crystallization behaviour of the block copolymers were investigated by DSC,TGA,WAXD,and dynamic viscoelastic measurement.The results show that for the copolymers no phase separation is observed.The copolymers are crystalline polymers similar to PEEK,the crystallinity measured by DSC decreases obviously with increasing HTA content.The T_g of the copolymer containing 37.24%HTA is 183℃,and is 40℃ higher than that of pure PEEK. The melting point of the copolymer is nearly as high as that of pure PEEK.The PEEK/HTA copolymers have very good high temperature mechanical property.

Key words: PEEK/HTA copolymer, Rigid-rigid block copolymer, Thermal property, Crystallization behaviour

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CAO Jun-Kui, SU Wen-Cheng, ZHOU Wen-Sheng, ZHOU Feng-Qi, WU Zhong-Wen. Studies on the Rigid-Rigid Block Copolymers(Ⅲ)──Synthesis and Properties of PEEK/HTA Block Copolymers[J]. Chem. J. Chinese Universities, 1994, 15(1): 145.

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Studies on the Rigid-Rigid Block Copolymers(Ⅲ)──Synthesis and Properties of PEEK/HTA Block Copolymers

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