UV固化液体聚异戊二烯橡胶改性物的合成

用液体聚异戊二烯橡胶和马来酸酐的接枝物与丙烯酸-β-羟乙酯在碱性条件下酯化制备了改性物,并探讨了反应温度、接枝物浓度、反应物配比、催化剂用量、反应时间对酯化反应改性的影响.实验结果表明:当反应温度为90℃、接枝物浓度为35；、接枝物与丙烯酸-β-羟乙酯的摩尔比为1∶40、催化剂质量分数为2；、反应时间为3 h时,可得到单酯化率为81.52；的酯化物,并对该液体聚异戊二烯橡胶改性物在紫外光辐照下的固化性能进行了表征.

The Synthesis of UV Curing Liquid Polyisoprene

Synthesized the modifier in alkaline condition through acrylic-β-hydroxyethyl and the graft copolymer which was synthesized by liquid polyisoprene and maleic anhydride, and discussed the influence of reaction tem-perature, concentration of graft copolymer, ratio of reactants, content of catalyst and reaction time on esterification. The results showed that the condition of esterification rate at 81.52； was that reaction temperature of 90 ℃, concentration of graft copolymer was 35；, the molar ratio of graft copolymer to acrylic-β-hydroxyethyl was 1∶40, content of catalyst was 2.0； and reaction time for 3 h , and characterized the curing performance of liquid poly-isoprene modifier in ultraviolet irradiation.