文献类型：期刊文献

英文题名：Synergistic effect of electric field and polymer structures acting on fabricating beads-free robust superhydrophobic electrospun fibers

作者：Guo, Yudi[1];Zhao, Erqing[2];Zhao, Xijuan[3];Zhang, Chenyang[1];Yao, Lu[1];Guo, Xiaowei[1];Wang, Xiaoping[1]

通讯作者：Zhao, EQ[1]

机构：[1]Xinxiang Univ, Sch Chem & Mat Engn, Xinxiang 453003, Henan, Peoples R China;[2]Henan Inst Sci & Technol, Sch Chem & Chem Engn, Xinxiang 453003, Henan, Peoples R China;[3]Cent Res Inst Bldg & Construct Co Ltd, Beijing 100088, Peoples R China

第一机构：新乡学院

通讯机构：[1]corresponding author), Henan Inst Sci & Technol, Sch Chem & Chem Engn, Xinxiang 453003, Henan, Peoples R China.

年份：2021

卷号：213

外文期刊名：POLYMER

收录：;EI(收录号：20204809546685);Scopus(收录号：2-s2.0-85096603340);WOS:【SCI-EXPANDED(收录号:WOS:000608415900003)】；

基金：This work was supported by National Natural Science Foundation of China (Grant No. 41606096, Grant No. 51502318, Grant No. 51802275); Science & Technology Basic Research Program of Nantong (Grant No. MS12015123); Henan Students' Innovation and Entrepreneurship Training Program (Grant No. S201911071004); Scientific Research Program for High-level Talents of Henan Institute of Science and Technology (2016034).

语种：英文

外文关键词：Robust superhydrophobicity; Synergistic effect; Surface enrichment

摘要：The synergistic effects of electric field and polymer structures were innovatively introduced to achieve uniform, beads-free, and robust superhydrophobic electrospun fibers. Aminopropyl triethoxysilane (APTES) terminated block copolymers of APTES-poly (methyl methacrylate)-b-poly (dodecafluoroheptyl methacrylate) (APTES-PMMA-b-PDFMA) and APTES-polystyrene-b-PDFMA (APTES PS b PDFMA) were synthesized via atom transfer radical polymerization (ATRP) and electrospinning in a positive electric field. Uniform, beads-free, and robust superhydrophobic electrospun films were fabricated with APTES-PS-b-PDFMA involving small amount of PDFMA segment. XPS results display that effective surface fluorine enrichment is more easily achieved on APTES-PS-b-PDFMA than on APTES-PMMA-b-PDFMA which involves large amount of DFMA. The mechanism can be summarized as follows: negatively charged block PS in positive electric field migrates towards the core of electrospinning jets, and block PMMA has a better positive charging stability than block DFMA, resulting in preferential surface segregation. This investigation will provide an important instructive value in controllable fabrication of robust superhydrophobic electrospun films applied in the fields of textiles, oil-water separation, membrane distillation, etc.