Solid-state supramolecular polymers: a new era for polymer science

固态超分子聚合物：高分子科学的新时代

• 批准号: 22KF0396
• 负责人: 相田 卓三
• 金额: $ 1.28万
• 依托单位: Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2023
• 资助国家: 日本
• 起止时间: 2023-03-08 至 2024-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22KF0396/
• 关键词: supramolecular polymers; self-assembly; block copolymers; Supramolecyular polymer; Phase seperation; Self-assembly; supramolecular polymers; self-assembly; block copolymers; Supramolecyular polymer; Phase seperation; Self-assembly

I synthesized a novel type of supramolecular monomer, which contains a carboxylate group, a guanidinium group, and two thermodynamic incompatible side chains. The carboxylate group and the guanidinium group have a strong supramolecular interaction called salt-bridge. The monomers are supramolecular polymerized via salt-bridge interaction. Furthermore, supramolecular polymers form a hierarchical structure in the solid state due to the microphase separation of two side chains. I confirmed the formation of nanoscale hierarchical structures by small angle X-ray scattering and transmission electron microscope. This result demonstrates that supramolecular polymerization can facilitate the microphase separation of polymer chains with small molecular weights and further form nanoscale structures.

我合成了一种新型的超分子单体类型，该单体包含一个羧酸盐组，一个鸟肾组和两个热力学不兼容的侧链。羧酸盐组和鸟肾组具有强烈的超分子相互作用，称为盐桥。单体通过盐桥相互作用进行超分子聚合。此外，由于两个侧链的麦粒分离，超分子聚合物在固态中形成分层结构。我通过小角度X射线散射和透射电子显微镜证实了纳米级分层结构的形成。该结果表明，超分子聚合可以促进具有小分子量的聚合物链的微相分离，并进一步形成纳米级结构。