Nonisothermal Crystallization Kinetics of PEEK-PEDEK Block Copolymer

Abstract

Abstract: The nonisothermal crystallization kinetics of PEEK-PEDEK block copolymers was studied and the results showed that the Avrami exponent n of each sample was generally larger than 3, which indicates the initial crystallization of the complex. The crystallization behavior could be described as heterogeneous, multi-dimensional spherical growth with thermal nucleation. The activation energy was calculated and was explained with the constitution changes of the molecular chains that caused by the introduction of biphenyl moiety.

Key words: PEEK, Block copolymer, Nonisothermal crystallization kinetics

CLC Number:

O631

TrendMD:

WANG Han-Fu, ZHAO Xiao-Gang, LIU Xin-Cai, CHEN Liang, WANG Li-Feng, CHEN Chun-Hai , WU Zhong-Wen. Nonisothermal Crystallization Kinetics of PEEK-PEDEK Block Copolymer[J]. Chem. J. Chinese Universities, 2004, 25(7): 1378.

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Nonisothermal Crystallization Kinetics of PEEK-PEDEK Block Copolymer

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