树枝状大分子
原子转移自由基聚合
偶氮苯
高分子化学
环加成
叠氮化物
凝胶渗透色谱法
化学
聚合
点击化学
炔烃
材料科学
光化学
有机化学
催化作用
分子
聚合物
作者
Fang Yao,Liqun Xu,Shunli Liu,Baoping Lin
摘要
Dendrimer-like polystyrenes (PSs) containing azobenzene moieties/core were prepared by one-pot copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) and atom transfer radical polymerization (ATRP) in the presence of PS with terminal azide groups, styrene monomers, 2,4-dibromoisobutyrate-4′-propynyloxyazobenzene, copper(I) bromide and ligand. The successful preparation of the dendrimer-like PSs was confirmed using gel permeation chromatography and 1H NMR and Fourier transform infrared spectroscopy. The dendrimer-like PSs prepared from one-pot CuAAC and ATRP exhibit a well-defined and controlled molecular structure in both whole macromolecules and the branches, which is attributed to the controlled character of ATRP and the quantitative yield of click chemistry. The dendrimer-like PSs prepared also exhibit good photo-isomerization properties due to the incorporation of azobenzene units within the dendrimers. Copyright © 2012 Society of Chemical Industry
科研通智能强力驱动
Strongly Powered by AbleSci AI