Journal ArticleDOI
Olefin copolymerization with metallocene catalysts. IV. Metallocene/methylaluminoxane catalyzed olefin teropolymerization
James C. W. Chien,Dawei He +1 more
TLDR
In this article, a terpolymerization of polyethylene, propylene, and ethylidene norbornene (D) was performed on a supported EPDM with E/P ratio which is similar to the ratio in the feed.Abstract:
Ethylene, propylene, and ethylidene norbornene (D) were terpolymerized by Et [Ind]2ZrCl2/MAO in solution and supported on silica. The presence of D decreases the rate of polymerization. EPDM containing between 3 and 22 wt % of D were synthesized which have narrow MW distribution. The supported catalyst produces EPDM with E/P ratio which are similar to the ratio in the feed.read more
Citations
More filters
Journal ArticleDOI
Stereospezifische Olefinpolymerisation mit chiralen Metallocenkatalysatoren
Journal ArticleDOI
Homogeneous group 4 metallocene ziegler-natta catalysts: The influence of cyclopentadienyl-ring substituents
Petra C. Möhring,Neil J. Coville +1 more
TL;DR: In this article, a new range of metallocene catalysts, Cp 2 MCl 2 (M = Ti, Zr, Hf) has been developed in the past decade, which, in the presence of alumoxanes are highly efficient at polymerizing α-olefins (ethene, propene, etc.).
Journal ArticleDOI
Organometallic catalysts for copolymerization of cyclic olefins
Xiaofang Li,Zhaomin Hou +1 more
TL;DR: In this article, an overview of recent progress in the addition copolymerization of ethylene or α-olefins with cyclic olefins by various organometallic catalysts is provided.
Journal ArticleDOI
Recent developments in olefin polymerizations with transition metal catalysts
Yukio Imanishi,Naofumi Naga +1 more
TL;DR: The development of homogeneous transition metal catalysts for olefin polymerization must be one of the most dramatic technologies for polymer synthesis in the 1980s as discussed by the authors, especially, development of group 4-metallocene catalysts not only improved the property of manufactured polyolefins but also made it possible to synthesize new type polyolemins.
Patent
Supported catalysts for the polymerization of olefins
TL;DR: In this paper, the authors proposed a supported catalysts for the polymerization of olefins, obtainable in the form of spherical particles, which can be used in the reaction of OE in liquid or in gas phase, thus producing polymers endowed with a controlled morphology and with high bulk density.
Related Papers (5)
Ethylene propylene diene terpolymers produced with a homogeneous and highly active zirconium catalyst
Olefin copolymerization with metallocene catalysts. III. Supported metallocene/methylaluminoxane catalyst for olefin copolymerization
James C. W. Chien,Dawei He +1 more