从CO2出发合成环状碳酸酯及杂化非异氰酸酯聚氨酯

Synthesis of cyclic carbonate and hybrid non-isocyanate polyurethane from CO2

用CO2和环氧大豆油(ESBO)为原料,在催化剂的作用下合成五元环碳酸酯(CSBO),并通过引入不同量双酚A二缩水甘油醚(E51)进行胺固化反应制备杂化非异氰酸酯聚氨酯(NIPU)。考察了E51的用量、原料与胺进行聚合反应的摩尔比以及多种胺固化剂对杂化NIPU力学性能的影响。结果表明:E51合适质量分数为10%~25%,胺固化的较佳摩尔比为1:1.0~1:1.2,用DETA(二乙烯三胺)、TETA(三乙烯四胺)和TEPA(四乙烯五胺)固化剂合成的杂化NIPU均有较好的强度和韧性。

The five-member cyclic carbonate(CSBO)was synthesized by using CO2 and epoxidized soybean oil(ESBO)as raw materials in the presence of the catalyst,and the hybrid non-isocyanate polyurethane(NIPU)was prepared through the amine curing reaction by introducing different amount of bisphenol A diglycidyl ether(E51).The influence of the E51 amount,the molar ratio of the raw materials and amine in the polymerization reaction and the various amine curing agents on the mechanical performance of the hybrid NIPU was investigated.The results show that the suitable mass fraction of E51 is 10%~25%,the better molar ratio of the amine curing is 1:1.0~1:1.2,the hybrid NIPU synthesized by using DETA(diethylenetriamine),TETA(triethylenetetramine)and TEPA(tetraethylenepentamine)as curing agents all have better strength and toughness.