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Synthesis of high‐molecular‐weight elastomeric poly(propylene) with half‐titanocene/MAO catalyst
Author(s) -
Xie Meiran,
Wu Qing,
Lin Shangan
Publication year - 1999
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/(sici)1521-3927(19990301)20:3<167::aid-marc167>3.0.co;2-n
Subject(s) - methylaluminoxane , catalysis , elastomer , polymerization , propylene oxide , polymer chemistry , titanium , materials science , metallocene , molar mass distribution , chemistry , copolymer , polymer , organic chemistry , composite material , metallurgy , ethylene oxide
A novel catalyst precursor, (η 5 ‐pentamethylcyclopentadienyl)titanium triallyloxide (Cp*Ti(OCH 2 —CH=CH 2 ) 3 ), was prepared and employed in a study of propylene polymerization in the presence of methylaluminoxane (MAO). This work has revealed that the half‐titanocene catalyst is desirable for the production of elastomeric poly(propylene) with high molecular weight ( M w = 8–69×10 4 ) as well as in good yields under typical polymerization conditions.