文献类型：期刊文献

中文题名：端羟基聚丁二烯聚氨酯弹性体的结晶行为

英文题名：CRYSTAL BEHAVIOR OF HYDROXY TERMINATED POLYBUTADIENE- POLYURETHANE ELASTOMERS

作者：马敏生[1];王庚超[1];张志平[1];应圣康[1];高永祺[2]

机构：[1]华东化工学院材料科学研究所,上海200237;[2]化工部黎明化工研究院

年份：1993

卷号：16

期号：4

起止页码：209

中文期刊名：合成橡胶工业

外文期刊名：China Synthetic Rubber Industry

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：橡胶;端羟基;聚丁二烯;聚氨酯

外文关键词：rubber; hydroxy terminated poly- butadiene - polyurethane; prepolymer; polymer morphology; polymer solution

摘要：用广角X射线衍射仪、偏光显微镜和透射电子显微镜对用一步法制备的端羟基聚丁二烯(简称丁羟)聚氨酯弹性体及浓度约1％的甲苯二异氰酸酯(TDI)-丁羟预聚物的氯仿溶液成膜试样的结晶形态进行了研究。发现4,4′-二苯基甲烷二异氰酸酯-乙二醇类丁羟聚氨酯弹性体中有不完整的结晶存在,TDI-丁羟预聚物稀溶液成膜试样中的软段呈发射状、纤束层状和多孔球状3种结晶形态,后者为目前首次发现。说明丁羟聚氨酯弹性体的硬段和软段在适当条件下都可能形成结晶结构。
The crystal morphology of the samples of hydroxy terminatedpoIybutadiene(HTPHD)based polyurethane elastomers prepared by one-step method were investigated by wide-angle X- ray diffraction, polarized light microscope and transmission electron microscope. The results showed that there was hard segment crystal in the diphenylmethane-4,4 ' - diisocyanate basedsamples , and the soft segment of HTPBD could form three kinds of crystals with the solvent vaporization in the dilute solution.