论文摘要
A novel synthetic strategy towards pH-responsive aggregation-induced emission（AIE）-active tetraphenylethene（TPE）-functionalized polyethylene-based block copolymers is presented. Tris（3-（4-（1,2,2-triphenylvinyl）phenoxy）propyl）borane was used to initiate the polyhomologation of dimethylsulfoxonium methylide to afford well-defined α-TPE-ω-OH linear polyethylenes（PE）. The terminal hydroxyl groups were transformed to atom transfer radical polymerization（ATRP） initiating sites by esterification with α-bromoisobutyryl bromide, followed by polymerization of tert-butyl acrylate（t BA） to provide TPE-PE-b-Pt BA block copolymers. After hydrolysis of the t Bu group to COOH group, the corresponding pH-responsive TPE-PE-b-PAA block copolymers were obtained. All synthesized block copolymers revealed AIE behavior either in solution or bulk. Due to the pH-responsivity of PAA chains, the aggregation state at different pH and consequently the fluorescence intensity changed. Also, the synthesized block copolymers exhibited ion-specificity fluorescence properties.
论文目录
文章来源
类型: 期刊论文
作者: Yu Jiang,Nikos Hadjichristidis
来源: Chinese Journal of Polymer Science 2019年09期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 有机化工
单位: Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST)
基金: supported by King Abdullah University of Science and Technology (KAUST)
分类号: TQ422
页码: 930-935
总页数: 6
文件大小: 687K
下载量: 19
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