Polynorbornene by Coördination Polymerization1
Polynorbornene by Coördination Polymerization1
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DOI：
10.1021/ja01494a057
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发表时间：
1960-05
影响因子：
15
通讯作者：
W. L. Truett;D. Johnson;I. Robinson;B. Montague
中科院分区：
文献类型：
--
作者：
W. L. Truett;D. Johnson;I. Robinson;B. Montague
讨论对于这里报道的工作，我们使用了来自四庚基锂铝和四氯化钛的催化剂体系。至少有两种聚异戊二烯聚合物可以用衍生自这些组分的催化剂制备。对于每摩尔四氯化钛，使用小于一摩尔当量的四庚基锂铝导致刚性、脆性的聚苯乙烯（A型）。当锂铝四庚基100%过量于钛
Discussion For the work reported here, we have used a catalyst system derived from lithium aluminum tetraheptyl and titanium tetrachloride. At least two kinds of polynorbornene polymers can be made usingcatalysts derived from these components. Use of less than a molar equivalent of lithium aluminum tetraheptyl for each mole of titanium tetrachloride leads to a rigid, brittle polynorbornene (type A). When a 100% excess of lithium aluminum tetraheptyl over titanium