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Homogeneous and heterogeneous metallocene/MAO‐catalyzed polymerization of trialkylsilyl‐protected alcohols
Author(s) -
Goretzki Ralf,
Fink Gerhard
Publication year - 1998
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(19981001)19:10<511::aid-marc511>3.0.co;2-1
Subject(s) - comonomer , norbornene , metallocene , copolymer , ethylene , polymer chemistry , monomer , post metallocene catalyst , polymerization , homogeneous , trimethylsilyl , chemistry , catalysis , organic chemistry , physics , polymer , thermodynamics
We investigated the ethylene copolymerization by utilizing Me 2 Si(Ind) 2 ZrCl 2 /MAO and Me 2 Si(Ind) 2 ZrCl 2 /MAO/SiO 2 with 10‐undecene‐1‐oxytrimethylsilane and 10‐undecene‐1‐oxytriisopropylsilane and the ethylene copolymerization by using i Pr(CpInd)ZrCl 2 /MAO and i Pr(CpInd)ZrCl 2 /MAO/SiO 2 with 5‐norbornene‐2‐methyleneoxytrimethylsilane and 5‐norbornene‐2‐methyleneoxytriisopropylsilane. The trimethylsilyl (TMS) protecting group could not prevent the catalyst deactivation caused by the addition of the polar comonomer. In contrast to that, good catalyst activities and comonomer contents were obtained with the triisopropylsilyl (TIPS) protected monomer. The homopolymerization of 10‐undecene‐1‐OTIPS was carried out with Me 2 Si(Ind) 2 ZrCl 2 /MAO.