文献类型：期刊文献

英文题名：Double-bond-containing polyallene-based composite nanofibers

作者：Yuan, Zongqian[1];Ding, Aishun[1];Xu, Binbin[2];Huang, Xiaoyu[3];Lu, Guolin[3];Guo, Hao[1]

机构：[1]Fudan Univ, Acad Engn & Technol, 220 Handan Rd, Shanghai 200433, Peoples R China;[2]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Chinese Acad Sci, Univ Chinese Acad Sci, Shanghai Inst Organ Chem, Ctr Excellence Mol Synth,Key Lab Synthet & Self A, 345 Lingling Rd, Shanghai 200032, Peoples R China

年份：2022

卷号：32

外文期刊名：COMPOSITES COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000814755500001)】；

基金：The authors thank the financial supports from National Natural Science Foundation of China (22001072) , Shanghai Scientific and Technological Innovation Project (22ZR1479300 and 21JM0010600) , and ?Chen Guang Project (20CG38) of Shanghai Municipal Education Commission.

语种：英文

外文关键词：Phenoxyallene; RAFT polymerization; PISA; Diblock copolymer

摘要：Composite nanofibers have attracted increasing attention due to their applications in a variety of fields, such as biomedicine, nanoelectronic and drug delivery systems. Particularly, the introduction of customizable reactive segments to composite nanofibers is proven efficient to generate novel nanomaterials with extra functionalities. However, the preparation of reactive composite nanofibers unavoidably involves multiple-step and tedious manipulations. In addition, these nanofibers are generally prepared at high dilution, which restricts their potential applications. Herein, a new method of producing reactive composite nanofibers was reported through the polymerization-induced self-assembly (PISA) formulation of poly(phenoxyallene) (PPOA)-containing diblock copolymers. Reversible addition-fragmentation chain transfer (RAFT) block copolymerization of styrene and POA was chosen as a model reaction to explore the polymerization and PISA conditions. It was found that a chain transfer agent (CTA) consisting of C12H25S as Z segment and -COOH in R moiety allows for the preparation of well-defined double-bond-containing poly(styrene)-b-poly(phenoxyallene) (PS-b-PPOA), poly(methyl acrylate)b-poly(phenoxyallene) (PMA-b-PPOA) and poly(methyl methacrylate)-b-poly(phenoxyallene) (PMMA-b-PPOA) diblock copolymers with controlled molecular weights and narrow dispersities. Specifically, on the basis of as prepared poly(ethylene glycol) (PEG) macro-CTA, we demonstrated the in situ formation of unique composite nanofibers of PEG-b-PPOA via PISA process in methanol. Our work provides a facile synthetic approach toward attractive one-dimensional composite nanofibers with controlled dimension and a capacity for postfunctionalization.