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成果報告書詳細
管理番号20170000000906
タイトル*平成28年度中間年報 有機ケイ素機能性化学品製造プロセス技術開発 (学校法人早稲田大学)
公開日2018/3/30
報告書年度2016 - 2016
委託先名学校法人早稲田大学
プロジェクト番号P14003
部署名環境部
和文要約
英文要約Title: Development of Innovative Catalytic Processes for Organosilicon Functional Materials. Development of Manufacturing Process Technology for Organosilicon Raw Materials from Sand. Development of Manufacturing Technology for Organosilicon Raw Materials from Q-Unit Intermediate Materials.

We investigated suitable extraction conditions of aqueous silicate anion with organic solvents and alkoxylation conditions of silicate anion in organic solvents. The amounts of extracted silicate anions depended on the kind of alcohols used as the extracting organic solvents. A tetraalkoxysilane was successfully synthesized by alkoxylation of the silicate anion in the organic solvents though the yield was low.

Development of Innovative Catalytic Processes for Organosilicon Functional Materials. Development of Manufacturing Process Technology for Organosilicon Functional Materials from Organosilicon Raw Materials. Silicon-Oxygen Bond Formation Technology.

We investigated the following three topics: (i) reaction conditions of cross-coupling reactions between hydrosilanes and silanols, (ii) reaction conditions of cross-coupling reactions between alkoxysilanes, and (iii) synthesis of starting materials of sequence-regulated polysiloxanes and polymerization of the starting materials. (i) In order to synthesize sequence-regulated polysiloxanes by cross-coupling reactions between hydrosilanes and silanols, the kind of catalysts and solvents, reaction temperature, and concentrations of monomers were investigated. However, sequence-regulated polysiloxanes were only partly obtained and randomly sequenced polysiloxanes and/or cyclic siloxanes were formed. (ii) The reaction conditions of cross-coupling reactions between alkoxysilanes were investigated to synthesize sequence-regulated polysiloxanes. Two types of cross-coupling reactions, coupling between two alkoxysilanes and coupling of oligosiloxane, were conducted but sequence-regulated polysiloxanes were only partly obtained in both cases and randomly sequenced polysiloxanes were obtained. (iii) In order to investigate the versatility of the synthesis method of sequence-regulated polysiloxanes invented last year, two oligosiloxanes were synthesized as new starting materials. The synthesized compounds were polymerized as the same way as invented last year and a new sequence-regulated polysiloxane was synthesized; however, the obtained polysiloxane had many disarrays of sequence regularity because of impurities included in starting materials.
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