Vinylsilane Inducing Selective Chain Transfer Reactions: A High Effective Method for the Preparations of Syndiotactic Polystyrene Based Stereoregular Diblock Copolymers
碩士 === 國立中正大學 === 化學工程所 === 96 === In this research, we demonstrate that the syndiospecific polymerization of 4-methylstyrene in the presence of dimethylphenylvinylsilane (DMPhVS) (chain transfer agent), the vinylsilane end-capped syndiotactic poly-4-methylstyrene (sPMS) can be selectively produced...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2008
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| Online Access: | http://ndltd.ncl.edu.tw/handle/20216996044921365911 |
| Summary: | 碩士 === 國立中正大學 === 化學工程所 === 96 === In this research, we demonstrate that the syndiospecific polymerization of 4-methylstyrene in the presence of dimethylphenylvinylsilane (DMPhVS) (chain transfer agent), the vinylsilane end-capped syndiotactic poly-4-methylstyrene (sPMS) can be selectively produced by using Cp*Ti(OMe)3/MAO as the catalyst. The resulting vinylsilane end-capped sPMS can be used as the end-functionalized stereoregular prepolymer for the preparations of structurally well-defined stereoregular diblock copolymers that can be used in the self-assembly studies for self-organizing nanomorphologies. Subsequently, the DMPhVS-capped sPMS was allowed to undergo desilylation reaction, hydroboration oxidation and esterfication reaction to provide the
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