Switchable Polymer Materials Controlled by Rotaxane Macromolecular Switches
Switchable Polymer Materials Controlled by Rotaxane Macromolecular Switches
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DOI：
10.1021/acscentsci.0c00002
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发表时间：
2020-02-26
影响因子：
18.2
通讯作者：
Takata, Toshikazu
中科院分区：
文献类型：
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作者：
Takata, Toshikazu
介绍了轮烷大分子开关控制的大分子体系的合成和动力学性质，讨论了轮烷连接高分子链及其拓扑开关的意义。以大分子[2]-轮烷（M2 Rs）为原料，采用仲铵盐/冠醚偶联法合成了高分子开关。M2 Rs具有一个单一的聚合物轴和一个冠醚轮的成功合成，构成了大分子开关的关键组成部分，使我们能够开发各种独特的应用，如开发拓扑可转化的聚合物。聚合物拓扑变换（例如，线性-星形和线性-环状）使用轮烷连接的聚合物和轮烷大分子开关实现。这些聚合物系统的显著动态性质对于设计复杂的刺激响应分子、聚合物和材料是足够有趣的。
The synthesis and dynamic nature of macromolecular systems controlled by rotaxane macromolecular switches are introduced to discuss the significance of rotaxane linking of polymer chains and its topological switching. Macromolecular switches have been synthesized from macromolecular [2]-rotaxanes (M2Rs) using sec-ammonium salt/crown ether couples. The successful synthesis of M2Rs possessing a single polymer axle and one crown ether wheel, constituting a key component of the macromolecular switch, has allowed us to develop various unique applications such as the development of topology-transformable polymers. Polymer topological transformations (e.g., linear-star and linear-cyclic) are achieved using rotaxane-linked polymers and rotaxane macromolecular switches. The pronounced dynamic nature of these polymer systems is sufficiently interesting to design sophisticated stimuli-responsive molecules, polymers, and materials.