中华医学超声杂志

应用化学 ›› 1987, Vol. 0 ›› Issue (3): 17-21.

• 研究论文 • 上一篇    下一篇

WCl4(OR)2Al(i-Bu)3体系合成1,2-聚丁二烯的研究

仲崇祺, 李晓文, 胡正水, 唐学明   

  1. 青岛化工学院
  • 收稿日期:1986-02-14 修回日期:1986-07-25 出版日期:1987-06-10 发布日期:1987-06-10

SYNTHESIS OF 1,2-POLYBUTADIENE WITH WCl4(OR)2-Al(i-Bu)3 CATALYST SYSTEM

Zhong Chongqi, Li Xiaowen, Hu Zhengshui, Tang Xueming   

  1. Qingdao Institute of Chemical Technology
  • Received:1986-02-14 Revised:1986-07-25 Published:1987-06-10 Online:1987-06-10

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摘要： 分析了五种醇与WCl6在室温下交换反应产物氯含量,表明产物中W:Cl=1:4,故产物可写为WCl4(OR)2。以WCl4(OR)2-Al(i-Bu)3为催化体系,在加氢汽油溶剂中可使丁二烯聚合,得到1,2-链节含量在80%,全同立构体在60%以上的聚合物。几种醇中,以n-C10H21OH交换产物的催化活性最高。各种聚合条件的改变,对聚合物微观结构及分子量分布影响不明显。

Abstract: This paper discusses the exchange reaction between WCl6 and four alcohols: n-C4H9OH,n-C5H11OH, t-C7H15OH and n-C10H21OH. The results show that the products of the reaction may be represented as WCl4(OR)2, The content of 1,2-unit in polymer prepared with WCl4(OR)2 -Al(i-Bu)3 catalyst in hydrogenated gasoline is found to be about 80% and the catalyst system with R=n-C10H21O gives the highest activity. The molecular weight distribution is independent of the polymerization conditions used.

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