Chem. J. Chinese Universities ›› 2004, Vol. 25 ›› Issue (6): 1156.

• Articles • Previous Articles     Next Articles

Synthesis and Thermal Properties of PEEK-PEDEK Block Copolymers

WANG Han-Fu, ZHAO Xiao-Gang, LIU Xin-Cai, CHEN Liang, WANG Li-Feng, CHEN Chun-Hai, WU Zhong-Wen   

  1. College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2003-04-07 Online:2004-06-24 Published:2004-06-24

Abstract: A series of PEEK-PEDEK block copolymers were synthesized by one step method. Their crystallization and melting behavior were analyzed by Differential Scanning Calorimeter (DSC) and Wide Angle X-ray Diffraction (WAXD). The results show that the glass transition temperature of the copolymer increases obviously as a result of the introduction of biphenyl (BP) units. With the increasing of BP molar fraction,the melting point presents a down and up trend whereas the lowest melting point turns out at a point where the molar fraction of biphenyl is 20%.

Key words: PEEK, Block copolymer, DSC, WAXD

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