チオアミドの直接的根性共ポリマー化により,脊椎に分解可能なチオエーテル結合を持つビニールポリマーが生成される
Hironobu Watanabe1, Masami Kamigaito1
1Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
Journal of the American Chemical Society
|April 20, 2023
まとめ
研究者らは,チオアミドとビニルモノメアの直接的根性共ポリマー化を使用して,新しい分解性ビニルポリマーを開発した. これは,硫黄を含むユニークなポリマー材料を作成する際にチオカルボニル化合物の有用性を拡大します.
科学分野:
- ポリマー化学
- 有機合成
- 材料科学
背景:
- β-分裂なしのチオカルボニル (CS) グループへの直接的な基質添加は未熟である.
- チオカルボニル化合物は,硫黄を含む新しい材料を合成する可能性を秘めています.
- ポリマーに硫黄を組み込むための既存の方法は限られている.
研究 の 目的:
- チオアミドCS結合とビニルモノマーCC結合の直接的根性共ポリマー化について報告する.
- 脊髄にチオエーテル結合を備えた新しい分解性ビニールポリマーを合成する.
- ラジカルポリメリゼーションにおけるN-アシレートチオフォーマミドの可能性を調査する.
主な方法:
- ビニルモノマー (例えばメチルアクリラート,スタイレン) とのN-アシレートチオフォーマミドの直接的根性共ポリマー化.
- RAFT (リバーシブル・アディション・フラグメンテーション・チェーン・トランスファー) のようなリバーシブル・デアクティベーション・ラジカル・ポリメリゼーション技術を用いる.
- 結果のコポリマー構造と特性の特徴
主要な成果:
- 様々なビニルモノマーとN-アシレートされたチオフォーマミドの成功共ポリマー化.
- ポリマーの骨格にチオエーテル単位を持つ新しいビニールポリマーの形成.
- その結果,コポリマーには高温のガラス化と環境分解性がある.
- RAFT共ポリメリゼーションも成功しました.
結論:
- この研究により,チオカルボニル化合物の基質反応の適用範囲が拡大される.
- 独特の特性を持つ新しい分解性ポリエーテル・ビニルポリマー混合材料が開発されました.
- この発見は,調整可能な特性を持つ新しい硫黄含有ポリマーへの道を開く.
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