A Study of the Crystallographic Equivalence of Ether and Ketone Groups in Poly(aryl ether ketone)s

Abstract

Abstract: Crystallographic equivalence of ether and ketone in all para-substituted PAEKs crystallized in form Ⅰ was discussed in this paper. In a word, crystallographic equivalence between ether and ketone groups is tenable when polymer contains only phenyl rings in the repeat unit. If a polymer contains a diphenyl group in the repeat unit, two cases should be distinguished. In the case of PEDEKKand PEEKDK, crystallographic equivalence between ether and ketone linkages is untenable. However, in the case of PEDKand PEDEKDK, crystallographic equivalence between ether and ketone linkages is still tenable.

Key words: Poly(aryl ether ketone)s, Crystal structure, Crystallographic equivalence of ether and ketone groups

CLC Number:

O631

TrendMD:

QIU Zhao-Bin, ZHOU Hong-Wei, MO Zhi-Shen, ZHANG Hong-Fang, WU Zhong-Wen . A Study of the Crystallographic Equivalence of Ether and Ketone Groups in Poly(aryl ether ketone)s[J]. Chem. J. Chinese Universities, 2000, 21(8): 1328.

References

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