Fe(2-EHA)3/Al(i-Bu)3/hydrogen phosphite catalyst for preparing syndiotactic 1,2-polybutadiene
Fe(2-EHA)3/Al(i-Bu)3/hydrogen phosphite catalyst for preparing syndiotactic 1,2-polybutadiene
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DOI：
10.1002/app.23270
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发表时间：
2006-06-05
影响因子：
3
通讯作者：
Huang, BT
中科院分区：
文献类型：
--
作者：
Lu, J;Hu, YM;Huang, BT
研究了ART-Fe(III)催化体系催化1，3-丁二烯聚合成间规聚1，2-聚丁二烯的反应。催化剂的活性受作为电子给体的烷基铝和磷化合物的类型、催化剂组分的摩尔比以及它们的老化顺序和催化剂的老化时间的影响。聚合物的微观结构和构型由催化剂组成决定，[Al]/[Fe]摩尔比越高，1，2-聚丁二烯越容易生成间规1，2-聚丁二烯，而[P]/[Fe]摩尔比越高，越有利于无定形1，2-聚丁二烯的形成。(C)2006年威利期刊公司。
Polymerizing 1,3-butadiene into syndiotactic 1,2-polybutadiene with art iron(III) catalyst system has been investigated. Activity of the catalyst was affected by the type of cocatalyst alkylaluminum and the phosphorus compound as an electron donor, molar ratio of catalyst components, and their aging sequence and aging time of the catalyst. The microstructure and configuration of the polymer was decided by the catalyst components, the higher [Al]/[Fe] molar ratio tending to yield syndiotactic 1,2-polybutadiene, while the higher [P]/[Fe] molar ratio favors the formation of amorphous 1,2-polybutadiene. (c) 2006 Wiley Periodicals, Inc.