文献类型：期刊文献

英文题名：Multi-mode supermolecular polymerization driven by host-guest interactions

作者：Chang, Dongdong;Han, Dan;Yan, Wenhao;Yuan, Zhiyi;Wang, Qiaochun;Zou, Lei[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China; East China Univ Sci & Technol, Inst Fine Chem, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：8

期号：25

起止页码：13722

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20181705051845);WOS:【SCI-EXPANDED(收录号:WOS:000430538300013)】；

基金：This work was financially supported by National Basic Research 973 Program (2013CB733700), National Natural Science Foundation of China (No. 21302056 and 21421004), Fundamental Research Funds for the Central Universities (222201717003).

语种：英文

外文关键词：High resolution transmission electron microscopy - Polymerization - Stereochemistry - Dendrimers - Irradiation - Nuclear magnetic resonance spectroscopy - Dynamic light scattering - Supramolecular chemistry

摘要：A novel supermolecular self-assembly based on ternary host-guest interaction between cucurbit[8]uril (CB[8]), 1,1-dimethyl-4,4-bipyridinium dication (MV) and coumarin derivative was applied for the construction of linear supramolecular polymer with high degree of polymerization in aqueous solution. Accompanied by the introduction of azobenzene on linear ABBA type monomer the supermolecular polymerization is different and the morphology changes from linear to dendritic polymer. The successful supramolecular polymerization of linear and dendritic supramolecular polymers by non-covalent host-guest molecular recognition was confirmed by various characterization methods, such as H-1 NMR spectroscopy, ROESY, transmission electron microscopy (TEM) and dynamic light scattering (DLS) measurements. Meanwhile, the supramolecular polymerization could promote the conversion of the azobenzene from cis to trans, which ultimately results in no isomerism upon UV irradiation.