以过氧化氢为引发剂,加入巯基乙醇或丙烯酸羟乙酯,合成了四种不同官能度的端羟基丁二烯-丙烯腈共聚物。以异佛尔酮二异氰酸酯为固化剂,N,N’-二羟丙基苯胺为链延伸剂,制得一系列多嵌段聚氨酯弹性体,研究了平均官能度对固化反应速度及固化物力学性能、动态力学性能、热性能和耐油性能的影响规律。 With hydrogen peroxide as initiator, mercaptoethanol or hydroxyethyl acrylate was added to synthesize four kinds of hydroxyl-terminated butadiene-acrylonitrile copolymers with different functionalities. A series of multiblock polyurethane elastomers were prepared by using isophorone diisocyanate as curing agent and N, N’-dihydroxypropylaniline as chain extender. The effects of average functionality on curing reaction rate and mechanics of cured material Performance, dynamic mechanical properties, thermal properties and oil resistance of the law.