1.Key Laboratory of Organosilicon Chemistry and Material Technology,Ministry of Education,Hangzhou Normal University,Hangzhou 311121; 2.Novel Silicone Research Institute Affiliated to Kaihua Synthetic Material Co.,Ltd.,Kaihua 324300
Abstract: The application of silane compounds as external electron donor in Ziegler-Natta catalytic system and its influence on the properties of polyolefins were reviewed,together with a discussion was conducted on the influence of the molecular structure of silane compounds and steric hindrance of substituents on the tacticity and molecular weight distribution of polyolefins.Based on the summarization of the recent research progress of silane-based electron-donors,the prospect of silane-based electron donor in the future was also presented.
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