C_5石油树脂的合成研究

Study on synthesis of C_5 petroleum resin

以C5馏分为原料,采用正离子聚合反应,经过原料预处理、热聚合、正离子聚合等工序合成了C5石油树脂。结果表明,其最佳合成工艺条件是:聚合单体含水量为400~500 mg/L,含有AlCl3组分催化剂C的用量为1.1%(质量分数),反应温度为90℃,反应时间为7 h,反应压力为0.9 MPa;在此条件下合成的C5石油树脂产品的收率约90%(以聚合单体质量为基准),总固含量约为83%(质量分数),溴价较低,加德纳色度小于6,相对分子质量分布指数为1.81~2.06,与基材苯乙烯-异戊二烯-苯乙烯嵌段共聚物(SIS)、苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)的相容性较好,为C5馏分的综合利用提供了重要途径。

C5 petroleum resin was synthesized by cationic polymerization with C5 fractions as raw materials.The synthetic process was consisted of pretreatment of raw materials,thermal polymerization,cationic polymerization,et al.The results showed that the optimum conditions of synthesis was:the moisture in the polymerization monomer 400-500mg/L,mass fraction of catalyst C containing AlCl3 1.1%,reaction temperature 90℃,reaction time 7h,reaction pressure 0.9MPa.The C5 petroleum resin synthesized under the above condit...