高等学校化学学报2001，Vol.22Issue(5)：844-846,3.
热塑性聚氨酯弹性体中的氢键作用动态力学分析
Hydrogen Bonding in Thermoplastic Polyurethane Elastomers Dynamic Mechanical Analysis
摘要
Abstract
A relatively high degree of physical crosslink was inferred from the superior mechanical properties of thermoplastic polyurethane elastomers(TPU). For the most part, this has been assumed due to hydrogen bonding. In this paper hydrogen bonding effects in some thermoplastic polyurethane elastomers, consisting of poly(tetramethylene oxide) of Mn=2 000, 4,4-diphenyl methane diisocyanate and extenders: N-methyl diethanol amine,1,4-butandiol and 1,2-ethylene diamine, have been studied by using dynamic mechanical analysis. The activation energies of hydrogen bonding dissociation and the physical crosslink densities have been evaluated from the elastic modulus-temperature relation of the TPU samples.关键词
热塑性聚氨酯弹性体/氢键作用/物理交联/温度依赖性分类
化学化工引用本文复制引用
陈大俊,李瑶君..热塑性聚氨酯弹性体中的氢键作用动态力学分析[J].高等学校化学学报,2001,22(5):844-846,3.基金项目
上海市教委重点学科建设项目 （）
