pH-Responsive Supramolecular Polymerization in Aqueous Media Driven by Electrostatic Attraction-Enhanced Crown Ether-Based Molecular Recognition

被引：31

作者：

Ji, Xiaofan ^{[1
]}

Zhu, Kelong ^{[1
]}

Yan, Xuzhou ^{[1
]}

Ma, Yingjie ^{[1
]}

Li, Jinying ^{[1
]}

Hu, Bingjie ^{[2
]}

Yu, Yihua ^{[2
]}

Huang, Feihe ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China

[2] E China Normal Univ, Dept Phys, Shanghai Key Lab Magnet Resonance, Shanghai 200062, Peoples R China

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2012年 / 33卷 / 14期

基金：

中国国家自然科学基金;

关键词：

electrostatic interactions; host-guest systems; molecular recognition; self-assembly; supramolecular polymers; PI-PI-STACKING; CHARGE-TRANSFER INTERACTIONS; SELF-ORGANIZATION; HOMODITOPIC MOLECULES; METAL-COORDINATION; POLYMERS; HOST; ION; PARAQUAT; MONOMERS;

D O I：

10.1002/marc.201200117

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

All the previously reported supramolecular polymers based on crown ether-based molecular recognition have been prepared in anhydrous organic solvents. This is mainly due to the weakness of crown ether-based molecular recognition in the presence of water. Here we report a linear supramolecular polymer constructed from a heteroditopic monomer in an aqueous medium driven by crown ether-based molecular recognition through the introduction of electrostatic attraction. In addition, the reversible transition between the linear supramolecular polymer and oligomers is achieved by adding acid and base. This study realizes the breakthrough of the solvent for supramolecular polymerization driven by crown ether-based molecular recognition from anhydrous organic solvents to aqueous media. It is helpful for achieving supramolecular polymerization driven by crown ether-based molecular recognition in a completely aqueous medium.

引用

页码：1197 / 1202

页数：6

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