CIESC Journal

• 化工学报 • 上一篇    下一篇

钴系催化剂合成液体聚丁二烯过程中α—烯烃的调节作用

焦书科,胡力平,单鉴会,戚银城   

  1. 北京化工学院高分子系 ,北京化工学院高分子系 ,北京化工学院高分子系 ,北京化工学院高分子系
  • 出版日期:1984-12-25 发布日期:1984-12-25

Adjusting Function of α-Olefine During Preparation of Liquid Polybutadiene Based on Cobalt Catalyst

Jiao Shuke, Hu Liping, Shan Jianhui, and Qin Yincheng Beijing Institute of Chemical Technology   

  • Online:1984-12-25 Published:1984-12-25

摘要: 以环烷酸钴、三异丁基铝和三氯甲苯为催化剂,抽余油作溶剂,乙烯、丙烯和异丁烯为分子量调节剂,合成了顺式1,4含量为45—60%、反式1,4含量为10—40%、乙烯基含量为15—40%、数均分子量为1500—6000的液体聚丁二烯,考察了α-烯烃用量等因素对转化率、分子量及产物微观结构的影响.对α-烯烃的调节机理作了探讨.

Abstract: Liquid polybutadiene(cis-1, 4 = 45-60%, trans-1,4 = 10-40%, vinyl = 15-40%, Mn=1500-6000) was prepared by using Co (naph)2-AliBu3-PhCCl3 as catalyst, extract gasoline as solvent and ethylene, propylene, isobutene as molecular weight regulator. The effect of α-olefine to butadiene molar ratio, polymerization temperature, monomer concentration, polymerization time on conversion, number-average molecular weight and microstructure of the productwere investigated. The adjusting mechanism of α-olef ine was proved.