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Ethene polymerization with modified‐polypropene‐supported highly stable Ziegler catalyst
Author(s) -
Mori Hideharu,
Ohnishi Kouki,
Terano Minoru
Publication year - 1996
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.1996.030170104
Subject(s) - polymerization , catalysis , polymer chemistry , polymer , materials science , yield (engineering) , toluene , chemistry , organic chemistry , composite material
A modified‐polypropene‐supported Ziegler catalyst was prepared using polypropene containing a small amount of poly(7‐methyl‐1,6‐octadiene) as a starting polymer for bromination, lithiation, and reaction with TiCl 4 . The polymerization of ethene was carried out using the catalyst with Al(C 2 H 5 ) 3 in toluene at 60°C up to 100 h. The polymer yield increased linearly with polymerization time, which indicates that the active sites of the modified‐polypropene‐supported Ziegler catalyst are practically stable without deactivation even for 100 h and are able to propagate further polymerization of ethene.