Supramolecular Chemistry in the Formation of Self-Assembled Nanostructures from a High-Molecular-Weight Rod-Coil Block Copolymer.
Supramolecular Chemistry in the Formation of Self-Assembled Nanostructures from a High-Molecular-Weight Rod-Coil Block Copolymer.
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DOI：
10.1002/marc.201400381
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发表时间：
2014-09
影响因子：
4.6
通讯作者：
Y. Tu;Zhichao Ji;Xiaoming Yang;X. Wan;Qifeng Zhou
中科院分区：
文献类型：
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作者：
Y. Tu;Zhichao Ji;Xiaoming Yang;X. Wan;Qifeng Zhou
研究了高分子量棒-线圈嵌段共聚物聚(苯乙烯-嵌段-(2,5-双[4-甲氧基苯基]氧羰基)苯乙烯)(PS-b-PMPCS)在对二甲苯中的自组装纳米结构。随着共聚物浓度的增加，观察到圆柱形胶束、长段圆柱形胶束缔合物、球形胶束和球形胶束缔合物。 PS的高分子量导致不同胶束的PS链之间发生缠结，这是超分子相互作用的力。短圆柱形胶束通过这种超分子化学首尾相连，形成长段圆柱形胶束缔合物，类似于缩聚过程，具有方向和饱和度。另一方面，球形胶束通过超分子化学组装形成球形胶束缔合物，但由于其各向同性特性而没有任何方向。
The self-assembled nanostructures of a high-molecular-weight rod-coil block copolymer, poly(styrene-block-(2,5-bis[4-methoxyphenyl]oxycarbonyl)styrene) (PS-b-PMPCS), in p-xylene are studied. The cylindrical micelles, long segmental cylindrical micelle associates, spherical micelles, and spherical micelle associates are observed with increased copolymer concentration. The high molecular weight of PS leads to the entanglement between PS chains from different micelles, which is the force for supramolecular interactions. Short cylindrical micelles are connected end-to-end via this supramolecular chemistry to form long segmental cylindrical micelle associates, analogue to the condensation polymerization process, with direction and saturation. On the other hand, spherical micelles assemble via supramolecular chemistry to form spherical micelle associates, yet without any direction due to their isotropic properties.