1999 Fiscal Year Final Research Report Summary
Development of Polymer Emulsion Utilizing Radical Ring-Opening Polymerization
| Project/Area Number |
10555323
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
高分子合成
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
ENDO Takeshi Tokyo Institute of Technology, Research Laboratory of Resources Utilization, Professor, 資源化学研究所, 教授 (40016738)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAMATSU Yasushi Mitsui Chemical Co., Research & Development Center for Functional Materials, Researcher, 機能性材料研究開発センター, 研究員
SANDA Fumio Tokyo Institute of Technology, Research Laboratory of Resources Utilization, Associate Professor, 資源化学研究所, 助教授 (70262318)
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| Project Period (FY) |
1998 – 1999
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| Keywords | polymer emulsion / radical polymerization / ring-opening polymerization / vinylcyclopropane / soap-free polymerization / soap-in polymerization / single particle size / 共重合 |
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| Research Abstract |
This work dealt with synthesis of novel polymer emulsion utilizing radical ring-opening polymerization. We examined the synthesis and radical polymerization of vinylcyclopropanes having cyclic thioacetal, amide, ester, trimethylsilyl groups. The monomer with cyclic thioacetal moiety showed low polymerizability, while the monomers with amide and ester groups underwent radical polymerization efficiently to afford the polymers consisting of 1,5-ring-opened units quantitatively. A bifunctional vinylcyclopropane afforded a crosslinked polymer. A trimethylsilylated polymer was reacted with electrophiles to afford the corresponding adducts. We examined the radical emulsion polymerization of vinylcyclopropanes, 1,1-bis(ethoxycar-bonyl)-2-vinylcyclopropane (ECVCP) and 1,1-dichloro-2-vinylcyclopropane (CVCP). ECVCP underwent soap-free and soap-in emulsion polymerization satisfactorily to afford the ring-opened polymer in good yields. Polymer emulsions were obtained in a spherical shape with single particle size distribution. Meanwhile, emulsion polymerization of CVCP proceeded in only a low conversion.
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