文献类型：期刊文献

英文题名：Novel supramolecular CT polymer employing disparate pseudorotaxanes as relevant monomers

作者：Sun, Ruyi[1]; Zhang, Qiwei[1]; Wang, Qiaochun[1]; Ma, Xiang[1]

机构：[1] Key Labs for Advanced Materials, Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, China

年份：2013

卷号：54

期号：10

起止页码：2506

外文期刊名：Polymer

收录：EI(收录号：20131716236075)

语种：英文

外文关键词：Monomers - Nuclear magnetic resonance spectroscopy - Self assembly - Supramolecular chemistry

摘要：A novel supramolecular polymer based on cucurbit [8] uril host-stabilized charge-transfer (CT) interactions between a viologen dication (MV2+) connector and a cyano-stilbene fluorophore decorated with dimethylamino portion has been constructed. Its reversible association and dissociation can be well controlled by electrochemical and pH stimuli, with two pseudorotaxanes worked as monomers induced by respective excitation. 1H NMR experiment, 2D NOESY NMR, DLS and AFM measurements were employed to demonstrate the formation of linear supramolecular polymer. Fluorescent and cyclic voltammetric experiments were carried out to illustrate its reversible assemble/disassemble process vividly. ? 2013 Elsevier Ltd. All rights reserved.