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CLC number: O632.12, TQ032.4
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Received: 2001-10-18
Revision Accepted: 2002-01-02
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Ethylene polymerization with novel silicon bridged homo-dinuclear cyanoethyl cyclopentadienyl complexes of titanium and zirconium
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SUN Jun-quan, LIANG Cheng-feng, YANG Yong-rong, Schumann H.. Ethylene polymerization with novel silicon bridged homo-dinuclear cyanoethyl cyclopentadienyl complexes of titanium and zirconium[J]. Journal of Zhejiang University Science A, 2002, 3(2): 148-150.
@article{title="Ethylene polymerization with novel silicon bridged homo-dinuclear cyanoethyl cyclopentadienyl complexes of titanium and zirconium",
author="SUN Jun-quan, LIANG Cheng-feng, YANG Yong-rong, Schumann H.",
journal="Journal of Zhejiang University Science A",
volume="3",
number="2",
pages="148-150",
year="2002",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2002.0148"
}
%0 Journal Article
%T Ethylene polymerization with novel silicon bridged homo-dinuclear cyanoethyl cyclopentadienyl complexes of titanium and zirconium
%A SUN Jun-quan
%A LIANG Cheng-feng
%A YANG Yong-rong
%A Schumann H.
%J Journal of Zhejiang University SCIENCE A
%V 3
%N 2
%P 148-150
%@ 1869-1951
%D 2002
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2002.0148
TY - JOUR
T1 - Ethylene polymerization with novel silicon bridged homo-dinuclear cyanoethyl cyclopentadienyl complexes of titanium and zirconium
A1 - SUN Jun-quan
A1 - LIANG Cheng-feng
A1 - YANG Yong-rong
A1 - Schumann H.
J0 - Journal of Zhejiang University Science A
VL - 3
IS - 2
SP - 148
EP - 150
%@ 1869-1951
Y1 - 2002
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2002.0148
Abstract: Novel homo-dinuclear silicon bridged cyanoethyl cyclopentadienyl complexes of titanium and zirconium (CH3)2Si((η5−C5H3CH2CH2CN)(C5H5)MCl2)2 (M=Ti(1), Zr(2)) were synthesized and developed for the polymerization of ethylene. Compared with their corresponding mononuclear complexes (η5−C5H4CH2CH2CN)(C5H5)MCl2 (M=Ti(3), Zr(4)), the dinuclear complexes had higher catalytic activity. And the polyethylene produced had a higher molecular weight than that obtained K7with mononuclear catalysts. Effects of conditions on the ethylene polymerization catalyzed by (2)/MAO (methylaluminoxane) were studied in detail. The catalyst showed a very high activity (>106 g PE/mol Zr·h) under low catalyst concentration and high molar ratio of Al/Zr.
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