Model hard segments were synthesized using ethyldiol,butanediol and tetragycol,model hard segments ends were reacted with di-n-butylamine.

• 用乙二醇、1,4-丁二醇、三缩四乙二醇和甲苯二异氰酸酯为原料,以二正丁胺为封端剂合成了几种不同结构的聚氨酯纯硬段模拟化合物。