Facile synthesis and hierarchical assembly of polystyrene-block- poly (perfluorooctylethyl acrylates)

doi:10.1016/j.polymer.2017.02.011

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Facile synthesis and hierarchical assembly of polystyrene-block- poly (perfluorooctylethyl acrylates)
	Dai, H; Yin, GZ; Zhao, FJ; Bian, ZX; Xu, YJ; Zhang, WB; Miao, XR; Li, H
刊名	POLYMER
	2017
卷号	113 页码:46-52
关键词	Fluoropolymers Block Copolymer Phase Separation Hierarchical Structure Self-assembly
ISSN号	0032-3861
DOI	10.1016/j.polymer.2017.02.011
文献子类	期刊论文
英文摘要	Hierarchical assembly of macromolecules has been central in creating complex nanostructures. In this work, polystyrene-block-poly (perfluorooctylethyl acrylates) (PS-b-PFOA) diblock copolymers were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization and shown to assemble into hierarchical structures in bulk with the interplay of nanophase separation and crystallization. The molecular weights were determined by gel permeation chromatography (GPC) and H-1 NMR spectra. The phase-separated nanostructures of these block copolymers were investigated via small angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) in reciprocal space and by transmission electron microscopy (TEM) in real space. The results showed that well-ordered lamellar morphologies were formed in the bulk of samples with volume fraction of PFOA (f(PFOA)) around 0.390-0.538. Within the PFOA layers, the side chains were found to further crystallize, forming crystalline layers with thicknesses about twice that of the length of fluorinated side-chains. The SAXS patterns from sheared samples further show that the orientation of crystalline layers was perpendicular to the lamellar layers formed by micro-phase separation. (C) 2017 Elsevier Ltd. All rights reserved.
语种	英语
WOS记录号	WOS:000398430000006
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/27323]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Dai, H,Yin, GZ,Zhao, FJ,et al. Facile synthesis and hierarchical assembly of polystyrene-block- poly (perfluorooctylethyl acrylates)[J]. POLYMER,2017,113:46-52.
APA	Dai, H.,Yin, GZ.,Zhao, FJ.,Bian, ZX.,Xu, YJ.,...&Li, H.(2017).Facile synthesis and hierarchical assembly of polystyrene-block- poly (perfluorooctylethyl acrylates).POLYMER,113,46-52.
MLA	Dai, H,et al."Facile synthesis and hierarchical assembly of polystyrene-block- poly (perfluorooctylethyl acrylates)".POLYMER 113(2017):46-52.