含砜聚醚酰胺热塑性弹性体的合成与性能表征  

Synthesis and Properties Characterization of Thermoplastic Sulfone-Polyetheramide Elastomers

作　　者：张剑[1] 陈建定[1] 姜振玉[1] 吴秋芳[1] 

机构地区：[1]华东理工大学材料科学与工程学院国家超细粉末工程研究中心,上海200237

出　　处：《华东理工大学学报（自然科学版）》2006年第5期561-567,共7页Journal of East China University of Science and Technology

基　　金：国家自然科学基金项目(30471682)

摘　　要：通过溶液缩聚分别合成端胺基的聚酰胺和端异氰酸根的聚醚,再将两者按不同配比制备含砜聚醚酰胺热塑性弹性体。藉FT-IR、DSC1、H-NMR等测试手段进行结构表征并分析两相间的相容程度,证明由于酰胺基团和脲基团的引入提高了聚合物的耐热性能,而聚醚基团则赋予聚合物良好的延展性,同时随着软段和硬段含量的提高,软硬段间相分离程度提高,相应地提高了聚合物的耐溶剂性能。Amide-terminated polyamide and isocyanate-terminated polyol synthesized by the solution polycondensation, mixed at different ratios to prepare thermoplastic sulfone-polyetheramide （PEA） elastomers. Structure characterization and phase miscibility was examined by FT-IR, DSC, ^1H-NMR spectroscopic measurements. The heat-resistance is highly improved because of the introduction of amide group and urea group and the polyester group endowed the polymer with good flexibility. Meanwhile, the dissolution of the hard polyamide segment into soft polyester domains decreased with increasing molecular weights of soft segments or increasing contents of hard segments. As a result, the solubility of PEA elastomers in solvent decreased.

关 键 词：含砜聚醚酰胺(PEA) 微相分离 氢键 热塑性弹性体 

分 类 号：TQ61[化学工程—精细化工]