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Exploring the topological effect of linear and cyclic macroCTAs during polymerization-induced self-assembly (PISA)
文献摘要：
Polymerization-induced self-assembly (PISA) is a robust strategy for the syntheses of block copolymer nano-objects with various morphologies. Although PISA has been extensively studied, the use of cyclic macromolecular chain transfer agents (macroCTAs) as the hydrophilic block has not been reported. We explored the effects of macroCTA topo-logy on the polymerization kinetics and morphologies of block copolymer assemblies during reversible addition-fragment-ation chain transfer (RAFT) dispersion polymerization. To this end, linear and cyclic poly (ethylene oxide) (PEO) with 4-(4-cyanopentanoic acid) dithiobenzoate (CPADB) groups were synthesized and used as CTAs to mediate the RAFT poly-merization of benzyl methacrylate (BzMA) and 2,3,4,5,6-pentafluorostyrene (PFSt) under PISA formulation. Interestingly, the nucleation period of the linear PEO is slightly shorter than that of its cyclic analog, and the cyclic hydrophilic segment leads to a delayed morphological transition during PISA.
文献关键词：
中图分类号：
[1] 医药、卫生（R） / 基础医学（R3） / 病理学（R36） / 病理过程（R364）
[2] 数理科学和化学（O） / 力学（O3） / 振动理论（O32） / 非线性振动（O322）
[3] 医药、卫生（R） / 药学（R9） / 药理学（R96） / 实验药理学（R965）
作者姓名：
Depeng Yin;Wen Xu;Hualong Zhang;Chao Liu;Chunyan Hong
作者机构：
CAS Key Laboratory of Soft Matter Chemistry,Department of Polymer Science and Engineering,University of Science and Technology of China,Hefei 230026,China
文献出处：
中国科学技术大学学报
引用格式：
[1]Depeng Yin;Wen Xu;Hualong Zhang;Chao Liu;Chunyan Hong-.Exploring the topological effect of linear and cyclic macroCTAs during polymerization-induced self-assembly (PISA))[J].中国科学技术大学学报,2022(05):1-10
A类：
macroCTAs,macroCTA,cyanopentanoic,dithiobenzoate,CPADB,BzMA,pentafluorostyrene,PFSt
B类：
Exploring,topological,linear,cyclic,during,polymerization,induced,self,assembly,PISA,Polymerization,robust,strategy,syntheses,block,copolymer,nano,objects,various,morphologies,Although,has,been,extensively,studied,macromolecular,chain,transfer,agents,hydrophilic,not,reported,We,explored,effects,logy,kinetics,assemblies,reversible,addition,fragment,RAFT,dispersion,To,this,end,ethylene,oxide,PEO,acid,groups,were,synthesized,used,mediate,benzyl,methacrylate,under,formulation,Interestingly,nucleation,period,slightly,shorter,than,that,its,analog,segment,leads,delayed,morphological,transition
AB值：
0.507085
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