メインチェーンとサイドチェーンシーケンスを制御したビニール共ポリマー,イテレティブ・アトム・トランスファー・ラジカル・アドチョンと1:1または2:1の交代的ラジカル共ポリマー化による
Takamasa Soejima1, Kotaro Satoh1,2, Masami Kamigaito1
1Department of Applied Chemistry, Graduate School of Engineering, Nagoya University , Nagoya 464-8603, Japan.
Journal of the American Chemical Society
|January 14, 2016
まとめ
研究者らは,制御されたメインとサイドチェーンを持つ配列制御されたビニール共ポリマーを作成しました. この新しい方法は モノメアの配置を正確に制御し 溶解性やガラス化温度などの物質特性に影響を与えます
科学分野:
- ポリマー化学
- 材料科学
背景:
- ポリマーの構造を正確に制御することは 材料の特性を調整するために不可欠です
- 配列調節されたビニール共ポリマーの合成戦略の開発は依然として課題です.
研究 の 目的:
- 主鎖と横鎖の配列を調節したビニール共ポリマーを合成する.
- コポリマー特性に対するモノメア配列の影響を調査する.
主な方法:
- 横鎖配列制御のためのイテラティブ・アトム・トランスファー・ラジカル・アディション (ATRA).
- メインチェーンの配列制御のためのマレイミド末端オリゴマーのラジカル共聚化.
- 配列で定義されたトリミルビニルオリゴーマー (スタイレン/メチルアクリラート) の合成とマレイミド末端オリゴーマーへの変換.
主要な成果:
- 主鎖と横鎖の配列を制御したビニール共ポリマーで,分子重量と生産性が高い.
- ポリマーのメインチェーンにおける1:1および2:1のモノメア配列調節が実証された.
- 溶解性やガラス化温度を含む共ポリマーの性質は,モノメアの組成と配列に依存していることが観察されました.
結論:
- 開発された戦略は,ビニール共ポリマーのメインチェーンとサイドチェーンの両方の正確な制御を可能にします.
- サイドチェーンの外部のモノマー単位は溶解性に大きく影響する.
- メインチェーンの連続したモノメア配列は,主にガラスの移行温度に影響します.
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