橡胶技术网

合成橡胶工业
CHINA SYNTHETIC RUBBER INDUSTRY
2010 Vol.33 No.2 P.116-119

 橡胶技术网

添加剂对钼系催化丁二烯聚合的影响

徐海兵　 耿洁婷　 田玉敏　 徐玲　 华静　

摘　要：研究了3种添加剂(D)α-氯代丙酸甲酯(MCP)、α-氯代乙基苯(CEB)、磷酸三丁酯(TBP)对MoCl_3(OC_8H_(17))2-Al(OPhCH_3)(i-Bu)_2(简称Mo-Al)催化丁二烯聚合的影响;考察了D的用量和加入方式对体系聚合活性及产物黏度的影响,并对产物微观结构进行表征.结果表明,在一定添加量下,MCP或CEB均可提高催化活性和降低聚合产物黏度;TBP可在很大程度上提高催化活性,但对产物黏度影响不大;最佳加料顺序为Al-Mo-D;加入D的时间间隔越长,对聚合活性的影响越不明显;所得产物为高乙烯基聚丁二烯,3种D对产物微观结构均无明显影响.
关键词：钼系催化剂;高乙烯基聚丁二烯;α-氯代丙酸甲酯;α-氯代乙基苯;磷酸三丁酯;转化率;特性黏数
分类号：TQ330.38~+3　文献标识码：A
文章编号：1000-1255(2010)02-0116-04

Effects of additives on butadiene polymerization catalyzed by molybdenum system

Xu Haibing（Key Laboratory of Rubber-Plastics of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China）　 Geng Jieting（Key Laboratory of Rubber-Plastics of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China）　 Tian Yumin（Key Laboratory of Rubber-Plastics of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China）　 Xu Ling（Key Laboratory of Rubber-Plastics of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China）　 Hua Jing（Key Laboratory of Rubber-Plastics of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China）　

Abstract：The effects of three different additives, methyl α-chloropropionate (MCP), α-chloroethylbenzene (CEB) and tributyl phosphate(TBP) on butadiene polymerization catalyzed by MoCl_3(OC8H_(17))2-Al(OPhCH_3)(i-Bu)_2 (simplified as Mo-Al ) were studied. The amount of additive and its addition way on polymerization activity and intrinsic viscosity of polymer were investigated, and the microstructure of polymer was characterized. The results showed that the polymerization activity was improved and the intrinsic viscosity of polymer was reduced in a certain amount of MCP or CEB. TBP could greatly improve the polymerization activity, but had little effect on the polymer's intrinsic viscosity. The best addition order was Al-Mo-additive. The effect of additive on polymerization activity reduced with the increase of the interval after adding Al-Mo. The product was high vinyl polybutadiene, and its microstructure of it was not much changed after adding the three kinds of additives.
Keywords：molybdenum catalyst system; high vinyl polybutadiene; methyl α-chloropropionate; α-chloroethylbenzene; tributyl phosphate; conversion; intrinsic viscosity

基金项目：国家自然科学基金资助项目(50603009).
作者简介：徐海兵(1985-),男,硕士研究生.已发表论文2篇.
作者单位：徐海兵（青岛科技大学,橡塑材料与工程教育部重点实验室,山东,青岛266042）　
　　　　　耿洁婷（青岛科技大学,橡塑材料与工程教育部重点实验室,山东,青岛266042）　
　　　　　田玉敏（青岛科技大学,橡塑材料与工程教育部重点实验室,山东,青岛266042）　
　　　　　徐玲（青岛科技大学,橡塑材料与工程教育部重点实验室,山东,青岛266042）　
　　　　　华静（青岛科技大学,橡塑材料与工程教育部重点实验室,山东,青岛266042）　

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收稿日期：2009年2月24日

修稿日期：2009年12月18日

出版日期：2010年3月15日