Theoretical Study of Strongly-Correlated Structure Formation in Hydrogen-Bonded Self-Assembly of Polymers

聚合物氢键自组装中强关联结构形成的理论研究

• 批准号: 13031048
• 负责人: TANAKA Fumihiko
• 金额: $ 9.98万
• 依托单位: Kyoto University, Graduate School of Engineering
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research on Priority Areas
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13031048/
• 关键词: sequential hydrogen bond; sol; gel transition; Coil; Helix Transition; biopolymer gels; double-helical crosslinks; hydrogen-bond-induced helical polymers; transient polymer networks; zipper-like polymer complex; ジッパー型架橋; ゲル・ペア転移; 分子内架橋; 水素結合超

Phase diagrams of biopolymer networks crosslinked by double helices are theoretically derived. The relationship between coil-to-helix transition and sol-gel transition is clarified. Molecular mechanism of network formation in helix-forming polymers is syudied on the basis of polymer solution theory and cascade theory of gelation. We found a new phase at low temperatures in which polymers are dimerized (pairing phase).Helix formation of polymers by hydrogen-bonded chiral molecules is theoretically studied and compared with recent experiments on carboxyphenyl acethylene in the mixture of amins and amino alcohols. Molecular mechanism of majority rule and sergeants-and-soldiers law is clarified. Amplification of helices by stretching such helical polymers is studied and a new method of optical resolution of racemic mixtures is proposed.

从理论上推导了双螺旋交联生物聚合物网络的相图。阐明了螺旋-螺旋转变与溶胶-凝胶转变之间的关系。在聚合物溶液理论和凝胶级联理论的基础上，研究了成螺旋聚合物中网络形成的分子机理。我们发现了低温下聚合物二聚的新相（配对相）。从理论上研究了氢键手性分子对聚合物螺旋形成的影响，并与最近在氨基和氨基醇混合物中对羧基苯基乙烯的实验进行了比较。明确了多数决和军士法的分子机制。研究了通过拉伸这种螺旋聚合物来放大螺旋，并提出了一种光学分辨外消旋混合物的新方法。

项目成果

M.Shoji, F.Tanaka: "Theoretical Study of Hydrogen-Bonded Supramolecular Liquid Crystals"Macromolecules. 35・19. 7460-7472 (2002)

M.Shoji、F.Tanaka：“氢键超分子液晶的理论研究”高分子35・19（2002）。

F.Tanaka: "Thermoreversible Gelation driven by Coil-to-Helix Transition of Polymers"Macromolecules. (To appear). (2003)

F.Tanaka：“聚合物的螺旋到螺旋转变驱动的热可逆凝胶化”大分子。

F.Tanaka: "Flows in Polymer Networks"JSME International J., Ser. B. 45・1. 123-128 (2002)

F. Tanaka：“聚合物网络中的流动” JSME International J.，Ser. B. 123-128 (2002)

T.Nakao, F.Tanaka, S.Kohjiya: "Cascade Theory of Substitution Effects in Nonequilibrium Polycondensation"Macromolecules. 35・4. 5649-5656 (2002)

T.Nakao、F.Tanaka、S.Kohjiya：“非平衡缩聚中的取代效应的级联理论”35・4（2002）。

F.Tanaka: "Thermoreversible Gelation driven by Coil-to-Helix Transition of Polymers"Macromolecules. 36. 5392-5405 (2003)

F.Tanaka：“聚合物的螺旋到螺旋转变驱动的热可逆凝胶化”大分子。