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rac ‐[CH 2 (3‐tert‐butyl‐1‐indenyl) 2 ]ZrCl 2 /MAO in the Copolymerization of Olefins and Dienes
Author(s) -
Pragliola Stefania,
Costabile Chiara,
Napoli Mariagrazia,
Guerra Gaetano,
Longo Pasquale
Publication year - 2006
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.200650217
Subject(s) - cyclopentane , cyclopropane , copolymer , propene , olefin fiber , polymer chemistry , cyclobutane , diene , catalysis , metallocene , 1,3 butadiene , chemistry , materials science , organic chemistry , polymerization , natural rubber , polymer , ring (chemistry)
Olefin‐diene copolymerizations in the presence of C 2 symmetric zirconocene rac ‐[CH 2 (3‐tert‐butyl‐1‐indenyl) 2 ]ZrCl 2 /MAO catalytic system have been reported and rationalized by experimental and molecular modeling studies. Ethene gives 1,2‐cyclopropane and 1,2‐cyclopentane, 1,3‐cyclobutane, and 1,3‐cyclopentane units in copolymerization with 1,3‐butadiene, 1,4‐pentadiene, and 1,5‐hexadiene, respectively. Propene‐1,3‐butadiene copolymerizations lead to 1,2 and 1,4 butadiene units and to a low amount of 1,2‐cyclopropane units.