Correlation between Self-Folding Behavior of Amphiphilic Polymers and Their Molecular Flexibility

DOI 機関リポジトリ (HANDLE) Web Site PubMed 被引用文献2件 参考文献43件 オープンアクセス

説明

Self-folding behavior of amphiphilic polymers in aqueous environments mimics the structures of biomacromolecules (e.g., proteins). Since both the three-dimensional structure (static) and the molecular flexibility (dynamic) of a protein are essential for its biological functions, the latter should be considered when designing synthetic polymers that are intended to mimic proteins. Herein, we investigated the correlation between the self-folding behavior of amphiphilic polymers and their molecular flexibility. We synthesized amphiphilic polymers by subjecting N,N-dimethylacrylamide (hydrophilic) and N-benzylacrylamide (hydrophobic) to living radical polymerization. Polymers containing 10, 15, and 20 mol % of N-benzylacrylamide demonstrated self-folding behavior in an aqueous phase. The spin–spin relaxation time (T_2) of the hydrophobic segments decreased with the percent collapse of the polymer molecules, indicating that mobility was restricted by the self-folding behavior. Furthermore, comparison of the polymers with random and block sequences revealed that the mobility of hydrophobic segments was not affected by the component of the local segments.

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  • ACS Macro Letters

    ACS Macro Letters 12 (6), 733-737, 2023-06-20

    American Chemical Society

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