【摘 要】
：
Comparison of MMA polymerization results with samarocene chloride, titanocene chloride and the title heterodinuclear (Sm-Ti) catalyst, respectively, showed syne
【机 构】
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College of Material Science and Chemical Engineering
论文部分内容阅读
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 molecularweight polymer. Kinetic studies on polymerization of MMA with ethylene bridged samarocene and titanocenechloride/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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