Synthesis and Properties of Poly (aryl ether ketone)s Containing meta-Phenyl Links

Abstract

Abstract: A series of poly(aryl ether ketone)s containing meta-phenyl links are synthesized,DSC and wide-angle X-ray scattering,etc.are used to study the general properties of the polymers.With the increasing of meta linkage monomer percentage,the melting temperature decreases sharply at first,then rises steadily,the glass transition point keeps a stable value,and crystallinity and crystallizing rate are reduced.Apart of amorphous film of the polymer is annealed at different temperatures.DSCscan shows that besides T_m,a new melting peak( T'_m)at low temperature appears.And with heat treating temperature rising,T'_m shifts to high temperature, and T_m keeps a stable value.

Key words: Poly(aryl ether ketone)s, meta-Phenyl links, Melting temperature, Crystallinity

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LIN Quan, ZHANG Wan-Jin, WU Zhong-Wen, YIN Jiu-Mei. Synthesis and Properties of Poly (aryl ether ketone)s Containing meta-Phenyl Links[J]. Chem. J. Chinese Universities, 1996, 17(8): 1322.

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Synthesis and Properties of Poly (aryl ether ketone)s Containing meta-Phenyl Links

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