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机构地区:[1]东华大学应用化学系,上海201620 [2]浙江金鹏化工股份有限公司,浙江台州318050
出 处:《粘接》2009年第6期34-38,共5页Adhesion
摘 要:利用4,4′-二羟基二苯硫醚(44DHDPS)、碳酸钾和4-氯硝基苯(4CNB),在N,N-二甲基甲酰胺和甲苯的混合溶剂中回流反应,合成得到了4,4′-双(4-硝基苯氧基)二苯硫醚(DNDPS);随后,在钯/炭和水合肼体系中还原得到4,4′-双(4-氨基笨氧基)二苯硫醚(DADPS),并与2,2-双[4-(3,4-二羧基苯氧基)苯基]丙烷二酐(BPADA)进行聚合反应,脱水亚胺化,得到聚硫醚酰亚胺(PTEI)树脂。采用聚硫醚酰亚胺树脂对环氧胶粘剂进行改性,效果良好。In the presence of potassium carbonate, the compound of 4,4'-bis(4-nitrophenoxy)diphenylsulfide (DNDPS) was synthesized through reflux reaction between 4-chloronitrobenzene and 4,4'-dihydroxydiphenylsulfide (44DHDPS) in the mixture solvents of N,N- dimethylformamide and toluene.The monomer of 4,4'-bis(4-aminophenoxy)diphenylsulfide (DADPS) was also obtained through reduction reaction of DNDPS in Pd/C-hydrazine hydrate system.The polythioetherimide (PTEI) resin was further synthesized by polymerization between DADPS and 2,2-[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride (BPADA) and dehydrate imidization reaction.The properties of the epoxy adhesive system modified with obtained PTEI resin were improved obviously.
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