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Copolymerization of ethylene and 1‐butene with highly active TI/MG bimetallic catalysts. Effect of partial activation by Alet 2 Cl
Author(s) -
Kim Jae Ha,
Han Taek Kyu,
Choi Hong Ki,
Kim Il,
Woo Seong Ihl
Publication year - 1995
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1995.030160203
Subject(s) - copolymer , catalysis , ethylene , bimetallic strip , 1 butene , polymer chemistry , polymerization , butene , materials science , chemistry , activation energy , partial oxidation , polymer , organic chemistry
Copolymerization of ethylene and 1‐butene were performed using the catalyst system TiCl 3 · 1/3 AlCl 3 /MgCl 2 /THF with or without partial activation by AlEt 2 Cl. The catalyst and the copolymers were characterized by IR spectroscopy. The experimental results reveal that partial activation strongly affects the catalytic sensitivity toward 1‐butene and obviously leads to a two‐step polymerization rate profile.