含砜基扩链剂对聚氨酯微相分离和性能的影响  

Microphase Separation and Properties of Polyurethane Elastomers Containing Sulfuryl Group Chain-Extender

作　　者：刘允航[1] 孔凡家[1] 杨晓慧[1] 姚洪喜[1] 王铭钧[1] 王丽 

机构地区：[1]上海交通大学化学化工学院,200240 [2]中船总公司船舶系统工程部,北京100036

出　　处：《聚氨酯工业》2009年第3期13-16,共4页Polyurethane Industry

摘　　要：以4,4′-二羟基二苯砜为原料合成了二[4-(4-氨基苯氧基)苯基]砜(BAPS),采用红外光谱(FTIR)、元素分析(EA)和核磁共振氢谱(1H-NMR)等对其结构进行了表征;并以BAPS为扩链剂制备了含砜基聚氨酯弹性体,采用原子力显微镜(AFM)、FTIR、热失重(TG)、广角X-射线衍射(WAXD)和力学性能测试等手段研究了此弹性体的微相分离结构和性能。结果表明,所得产物BAPS的结构与预期设计相符;以BAPS为扩链剂合成的含砜基聚氨酯弹性体微相分离明显,具有较好的耐热性和机械性能。The bis [ 4- （4-aminophenoxy） -phenyl ] sulfone （ BAPS ） was synthesized by 4,4′-dihydroxy diphenyl sulfone and characterized by means of FTIR, EA and 1 H-NMR. The obtained BAPS was used as a chain extender for preparing polyurethane elastomers. The microphase separation structure and properties were measured through F-FIR, WAXD, AFM, TG and tensile measurements. The results showed that the prepared BAPS structure was coincided with the designed one. The prepared polyurethane elastomers which contained sulfuryl group had a higher degree of microphase separation, better heat-resistance and high mechanical properties compared with the elastomers chain-extended MOCA.

关 键 词：砜基 扩链剂 聚氨酯 微相分离 性能 

分 类 号：TQ334.1[化学工程—橡胶工业]