摘要
研究开发了非茂金属催化剂用于苯乙烯的间规聚合，合成了β－二酮钛配合物／ＭＡＯ，引入烷氧基的β－二铜钛配合物／ＭＡＯ，８－羟基喹啉钛配合物／ＭＡＯ和β－联萘酚钛配合物／ＭＡＯ等催化体系，其中最好的催化体系用于苯乙烯本体聚合时，在８０℃和Ａｌ／Ｔｉ比为５００的聚合条件下，活性达到６×１０＾５ｇ（ＰＳ）／ｍｏｌ（Ｔｉ）．ｈ，聚合物间规度〉９５％，熔点达２７０℃。
The non - metallocene based catalysts for syndiotactic polymerizations of styrene have been developed by Institute of Chemistry, Chinese Academy of Sciences and Research Institute of Beijing Yanshan Petrochemical Corporation. The β-diketone - Ti complexes/MAO, 8-hydroxyquinoline-Ti complexes/MAO and β- dinaphthol - Ti complexes/MAO have been investigated. The best catalystic system ( polymerization conditions: 80 ℃ and Al/Ti = 500) is highly active ( 6×105g ( PS) /mol ( Ti)·h) . and the polymer with high syndiotacticty ( >95%) and melting point (275℃) was produced using this catalytic system. The relationship between the structure of catalysts and their properties were also discussed.
出处
《合成树脂及塑料》
CAS
1997年第2期8-11,共4页
China Synthetic Resin and Plastics
