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Polymerization of Ethene and Longer Chained Olefins by Metallocene Catalysis
Author(s) -
Kaminsky Walter,
Piel Christian,
Scharlach Katrin
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200550803
Subject(s) - comonomer , metallocene , post metallocene catalyst , copolymer , polymerization , polymer chemistry , monomer , catalysis , 1 octene , linear low density polyethylene , materials science , chemistry , ethylene , polyethylene , organic chemistry , polymer
Copolymers of ethene and longer chained 1‐olefins such as 1‐octene, 1‐decene, 1‐dodecene, 1‐octadecene and 1‐hexacosene with 8 to 28 carbon atoms were carried out using [Ph 2 C(2,7)‐di tert BuFlu)(Cp)]ZrCl 2 /MAO as catalyst. Precisely designed microstructures and activities up to 168 000 kg copolymer /(mol zirconocene ·h·mol/l monomer ) can be obtained. There is a remarkable polymerization activity left even after a time of 4 hours. The incorporation of the longer chained 1‐olefins reaches 19 wt% and depends on the chain length and the concentration of the comonomer in the feed, the LLDPE materials prepared show melting points of 129 – 112 °C.