Synthesis and Properties of a Novel Poly(aryl ether ketone)s Containing Halogen Groups

doi:10.7503/cjcu20150387

Abstract

Abstract:

A novel bisphenol monomer 4-iodophenyl hydroquinone(I-Ph-HQ) was synthesized. Further, a series of poly(aryl ether ketone)s containing halogen groups in side chains(PEEK-CF₃-I) was synthesized by nucleophilic substitution polycondensation reaction using the bisphenol monomer I-Ph-HQ and (3-trifluoro-methyl) phenyl hydroquinone with 4,4'-difluorobenzophenone(DFB). The chemical structures of the copolymers were characterized by FTIR and ¹H NMR. Moreover, the dielectric properties, thermal properties and mechanical properties of the prepared copolymers PEEK-CF₃-I were revealed. The effect of fluorine and iodine side groups in the copolymer was discussed. The results show that the glass transition temperature(T_g) of copolymer can be significantly enhanced with the increase of the content of iodine side groups in copolymers, especially for copolymer material PEEK-CF₃-I-10% the T_g is 153 ℃, meanwhile, the material exhibits excellent mechanical properties and low dielectric constant.

Key words: Poly(aryl ether ketone), Halogen, Glass transition temperature

CLC Number:

O631

TrendMD:

LU Ying, YANG Xue, YANG Xia, ZHU Suiyi, FAN Wei, GENG Zhi. Synthesis and Properties of a Novel Poly(aryl ether ketone)s Containing Halogen Groups[J]. Chem. J. Chinese Universities, 2015, 36(9): 1819.

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