The results showed that the terminated prepolymer was prepared by introducing ethylene glycol alkyl ether as a capping agent into the reaction system of castor oil and tolylene diisocyanate (TDI).

• 结果表明,采用蓖麻油与甲苯二异氰酸酯(TDI)反应,加入封端剂乙二醇烷基醚类,得到封端型聚氨酯预聚体。