Controlled synthesis of amphiphilic graft copolymer for superhydrophobic electrospun fibres with effective surface fluorine enrichment: the role of electric field and solvent

doi:10.1039/c5ra15317d

QIBEBT-IR > 先进界面技术研究组

	Controlled synthesis of amphiphilic graft copolymer for superhydrophobic electrospun fibres with effective surface fluorine enrichment: the role of electric field and solvent
	Guo, Yudi 1,2; Tang, Dongyan 1; Zhao, Erqing3 ; Yu, Zaiqian 1; Lv, Haitao 1; Li, Xinyu 1
	2015
发表期刊	RSC ADVANCES
卷号	5 期号:101 页码:82789-82799
摘要	Effective surface fluorine enrichment has great potential application value for superhydrophobic electrospun films, which has presented a challenge to researchers. The aim is expected to be achieved by electrospinning functional polymers with controlled structure based on the polarization characteristics of functional groups in polymer chains and their directional ordering induced by an electric field. Herein, an amphiphilic graft copolymer of poly(methyl methacrylate-ran-hydroxypropyl acrylate)-graft-poly(dodecafluoroheptyl methacrylate) (PMMA-r-PHPA-g-PDFMA) was synthesized by the combination of free radical polymerization and atom transfer radical polymerization (ATRP). Superhydrophobic fibrous films with high surface fluorine atomic content of 29.1% and even up to 34.8% were fabricated by eletrospinning the resultant fluoropolymer. It is concluded that the electric field can drive the surface segregation of positively charged fluorinated groups and bulk segregation of negatively charged -OH groups, thus contributing to the effective surface fluorine enrichment, which was confirmed by XPS results. Additionally, we also found that the superhydrophobicity of electrospun films has no apparent dependence on fibre morphologies. The variation in the surface wettability can be attributed to the difference in surface compositions obtained by changing the applied electric field strength and solvents. This research would present potential application prospects in fabricating high surface fluorinated superhydrophobic electrospun fibres or novel surface functionalized electrospun fibres.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c5ra15317d
关键词[WOS]	BLOCK-COPOLYMERS ; RADICAL POLYMERIZATION ; THIN-FILMS ; TEFLON AF ; NANOFIBERS ; FLUOROPOLYMER ; METHACRYLATE ; WETTABILITY ; FABRICATION ; MORPHOLOGY
收录类别	SCI
语种	英语
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000362438300022
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6683
专题	先进界面技术研究组
作者单位	1.Harbin Inst Technol, Sch Sci, Dept Chem, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Guo, Yudi,Tang, Dongyan,Zhao, Erqing,et al. Controlled synthesis of amphiphilic graft copolymer for superhydrophobic electrospun fibres with effective surface fluorine enrichment: the role of electric field and solvent[J]. RSC ADVANCES,2015,5(101):82789-82799.
APA	Guo, Yudi,Tang, Dongyan,Zhao, Erqing,Yu, Zaiqian,Lv, Haitao,&Li, Xinyu.(2015).Controlled synthesis of amphiphilic graft copolymer for superhydrophobic electrospun fibres with effective surface fluorine enrichment: the role of electric field and solvent.RSC ADVANCES,5(101),82789-82799.
MLA	Guo, Yudi,et al."Controlled synthesis of amphiphilic graft copolymer for superhydrophobic electrospun fibres with effective surface fluorine enrichment: the role of electric field and solvent".RSC ADVANCES 5.101(2015):82789-82799.