単一ポリマー鎖の分割は,配列制御されたマクロ分子による段階的な分子内クロスリンクによるものです
Raj Kumar Roy1, Jean-François Lutz
1Precision Macromolecular Chemistry Group, Institut Charles Sadron, UPR-22 CNRS , BP 84047, 23 rue du Loess, 67034 Strasbourg Cedex 2, France.
Journal of the American Chemical Society
|September 4, 2014
まとめ
研究者らは,配列制御されたマクロモレキュルの分子内二重圧縮を,配列の正方形クロスリンク反応を用いて構造化されたランダムコイルに達成した. この方法では,区画化された単一チェーンオブジェクトを作成し,異なるクロスリンクされたサブドメインを作成します.
科学分野:
- ポリマー化学のポリマー化学について
- マクロ分子科学 マクロ分子科学
- 超分子化学 超分子化学
背景:
- 配列制御ポリマーは,マクロ分子構造の正確な制御を提供します.
- 分子内折り畳みと圧縮は,複雑な単一鎖のオブジェクトを作成する鍵です.
- オートゴナル・クロスリンク戦略により,ポリマー鎖の選択的改変が可能です.
研究 の 目的:
- シーケンス制御された線形マクロモレキュルの分子内二重圧縮を報告する.
- 連続した直角的クロスリンクを介して,区画化された単一鎖のオブジェクトを準備する.
- 折り畳みプロセスと,その結果,構造化されたランダムコイルを特徴付けるために.
主な方法:
- スタイレンの配列制御コポリマーと機能マレイミド (MIs) の合成.
- ペンタフルオロフェニル4-マレイミドベンゾ酸塩 (1) とTIPSで保護されたN-プロパルギルマレイミド (2) を利用して,直角クロスリンクする.
- エチレンダイアミンの反応とエグリントン結合による連続的クロスリンク.
- プロトン核磁気共鳴 (1H NMR) とサイズ排除染色体 (SEC) を用いた特徴付け.
主要な成果:
- 単一のクロスリンクゾーンを持つモデルコポリマーは,単一鎖のオブジェクトに効率的に圧縮されました.
- 2つの個別アドレス可能なクロスリンクゾーンを持つ複雑な共ポリマーは,連続した二重圧縮を受けた.
- 詳細な特徴づけにより,明確な相互リンクされたサブドメインを持つ単鎖粒子の形成が確認されました.
結論:
- 配列制御マクロモレキュルの分子内二重圧縮は達成可能である.
- 配列直角クロスリンクは,構造化されたランダムコイルを作成するための効果的な戦略です.
- 開発された方法は,定義されたサブドメインを持つ分割された単鎖オブジェクトを生成します.
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