【摘要】 以４．４’－二氟二苯酮，４，４’－二氯二苯砜和双酚Ｓ为单体，通过溶液缩聚法合成了聚芳醚酮砜共聚物系列样品，并用ＩＲ，ＤＳＣ，ＴＧＡ和动态粘弹谱仪进行表征．结果表明：共聚物是无定形聚合物，其热性能和动态力学性能介于聚醚酮醚砜和聚醚砜之间，共聚物的Ｔ＿ｇ随组成的变化符合Ｆｏｘ方程，酮类组分有利于提高共聚物的耐高温性能。更多还原

【Abstract】 A series of polyaryletherketonesulfone copolymers were synthesized by means ofliquid polycondensation of 4,4’-difluorobenzophenon,4,4’-dichlorodiphenylsulfone andbisphenol S as monomers,and was characterized by means of IR, DSC, TGA and using adynamic viscoelastometer.The result indicates that this copolymer is an amorphous poly-mer,and its thermal property and dynamic mechanical property lie between those of pol-yaryletherketoneethersulfone and polyarylethersulfone, The glass transition temperature ofthe copolymer changes with its composition according to Fox equation. The keto- monomercan increase the thermal resistance of the copolymer.更多还原