科研之友
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摘要
Activities of ethylene/alpha-olefin copolymerization were found to increase with silane-modified silica-supported MAO using ansa-zirconocene catalyst. The increase in activities was less pronounced when higher alpha-olefins were used. However, silane modi. cation resulted in the narrower molecular weight distribution of polymers. C-13 NMR revealed that ethylene incorporation in all systems gave polymers with the similar triad distribution.
- 出版日期2004-5
