Templated Self-Assembly of Block Copolymers and Morphology Transformation Driven by the Rayleigh Instability

	Templated Self-Assembly of Block Copolymers and Morphology Transformation Driven by the Rayleigh Instability
	Yan,Nan; Sheng,Yuping; Liu,Hongxia; Zhu,Yutian; Jiang,Wei
刊名	langmuir
	2015
卷号	31 期号:5 页码:1660-1669
关键词	ALUMINUM-OXIDE TEMPLATES TRIBLOCK COPOLYMER DIBLOCK COPOLYMER CYLINDRICAL CONFINEMENT POLYMER NANOSTRUCTURES THIN-FILMS NANOTUBES NANOPORES NANOSPHERES FABRICATION
通讯作者	zhu,yt
英文摘要	in the current study, we investigate the self-assembly of polystyrene-block-poly(4-vinylpyridine) (ps-b-p4vp) confined in the nanopores of the anodic aluminum oxide (aao) template and the subsequent morphology transformation induced by the rayleigh instability. ps-b-p4vp nanotubes and nanorods with various internal nanostructures are fabricated by wetting the aao template with ps-b-p4vp/chloroform solution, and then followed by solvent evaporation. after the removal of aao template by potassium hydroxide solution, several different solvents (chloroform, toluene, and n,n-dimethylformamide) with different qualities are used to swell and anneal those nanotubes and nanorods suspended in aqueous media. morphology transformation from nanostructured ps-b-p4vp nanotubes or nanorods to ordered nanospheres is observed by annealing upon chloroform and toluene while the morphology remains unchanged upon n,n-dimethylformamide annealing, indicating that solvent quality is a key factor in tuning the morphology and internal structures. kinetics study and theoretical analysis for the morphology transition from two-dimensional (2d) block copolymer (bcp) nanotubes and nanorods to three-dimensional (3d) bcp nanospheres are further performed. from the morphological evolution and the quantitative calculation, it is confirmed that this transition is induced by the rayleigh instability. this study provides a simple but promising method, that is, solvent annealing method, for the fabrication of bcp nanospheres with ordered internal nanostructures, which may have great application in drug delivery and other nanotechnology.
收录类别	SCI
语种	英语
公开日期	2016-05-31
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/65146]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Yan,Nan,Sheng,Yuping,Liu,Hongxia,et al. Templated Self-Assembly of Block Copolymers and Morphology Transformation Driven by the Rayleigh Instability[J]. langmuir,2015,31(5):1660-1669.
APA	Yan,Nan,Sheng,Yuping,Liu,Hongxia,Zhu,Yutian,&Jiang,Wei.(2015).Templated Self-Assembly of Block Copolymers and Morphology Transformation Driven by the Rayleigh Instability.langmuir,31(5),1660-1669.
MLA	Yan,Nan,et al."Templated Self-Assembly of Block Copolymers and Morphology Transformation Driven by the Rayleigh Instability".langmuir 31.5(2015):1660-1669.