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CLC number: O632.52
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Received: 2000-11-21
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POLYMERIZATION OF METHYL METHACRYLATE WITH ETHYLENE BRIDGED HETERODINUCLEAR METALLOCENE OF SAMARIUM AND TITANIUM—STUDY ON SYNERGISM AND KINETICS
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SUN Jun-quan, PAN Zhi-da, HU Wei-qiu, YANG Shi-lin. POLYMERIZATION OF METHYL METHACRYLATE WITH ETHYLENE BRIDGED HETERODINUCLEAR METALLOCENE OF SAMARIUM AND TITANIUM—STUDY ON SYNERGISM AND KINETICS[J]. Journal of Zhejiang University Science A, 2001, 2(4): 366-371.
@article{title="POLYMERIZATION OF METHYL METHACRYLATE WITH ETHYLENE BRIDGED HETERODINUCLEAR METALLOCENE OF SAMARIUM AND TITANIUM—STUDY ON SYNERGISM AND KINETICS",
author="SUN Jun-quan, PAN Zhi-da, HU Wei-qiu, YANG Shi-lin",
journal="Journal of Zhejiang University Science A",
volume="2",
number="4",
pages="366-371",
year="2001",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2001.0366"
}
%0 Journal Article
%T POLYMERIZATION OF METHYL METHACRYLATE WITH ETHYLENE BRIDGED HETERODINUCLEAR METALLOCENE OF SAMARIUM AND TITANIUM—STUDY ON SYNERGISM AND KINETICS
%A SUN Jun-quan
%A PAN Zhi-da
%A HU Wei-qiu
%A YANG Shi-lin
%J Journal of Zhejiang University SCIENCE A
%V 2
%N 4
%P 366-371
%@ 1869-1951
%D 2001
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2001.0366
TY - JOUR
T1 - POLYMERIZATION OF METHYL METHACRYLATE WITH ETHYLENE BRIDGED HETERODINUCLEAR METALLOCENE OF SAMARIUM AND TITANIUM—STUDY ON SYNERGISM AND KINETICS
A1 - SUN Jun-quan
A1 - PAN Zhi-da
A1 - HU Wei-qiu
A1 - YANG Shi-lin
J0 - Journal of Zhejiang University Science A
VL - 2
IS - 4
SP - 366
EP - 371
%@ 1869-1951
Y1 - 2001
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2001.0366
Abstract: Comparison of MMA polymerization results with samarocene chloride, titanocene chloride and the title heterodinuclear (Sm-Ti) catalyst, respectively, showed synergism in the Sm-Ligand-Ti system, which obviously influenced the polymerization behaviors, for example, of yielding higher activity and higher molecular weight polymer. Kinetic studies on polymerization of MMA with ethylene bridged samarocene and titanocene chloride/M(i-Bu)3 showed that the polymerization rate was first-order on the catalyst concentration, and 1.9-order on the monomer. The overall activation energy measured was 52.8 kJ/mol.
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