Intelligent Reversible Nanoporous Antireflection Film by Solvent-Stimuli-Responsive Phase Transformation of Amphiphilic Block Copolymer

doi:10.1021/la301755a

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	Intelligent Reversible Nanoporous Antireflection Film by Solvent-Stimuli-Responsive Phase Transformation of Amphiphilic Block Copolymer
	Li, Xiao; Yu, Xinhong; Han, Yanchun
刊名	LANGMUIR
	2012-07-17
卷号	28 期号:28 页码:10584-10591
ISSN号	0743-7463
DOI	10.1021/la301755a
英文摘要	An erasure-reconstniction porous structure with reversible antireflection (AR) property at near-infrared region (NIR) was prepared for the first time based on solvent-stimuli-responsive phase transformation of polystyrene-block-poly(4-vinypyridine) (PS-b-P4VP). The inhomogeneous porous structure with a dense skin and porous underneath, which was obtained by the nonsolvent-induced phase separation of PS-b-P4VP film from micelle solution with mixed solvents (tetrahydrofuran and dimethylformamide), was used as starting porous film. Then, the film was annealed by PS-selective solvent to erase the nanopores because the PS block was swollen effectively by its selective solvent. Afterward, the nonporous film was immersed in linear aliphatic acid to reconstruct the nanoporous structure (loosely packed micelles) by the combination of the hydrogen bond interaction and the positively charge-induced repulsion between each chain. Thus, an intelligent reversible AR property in the NIR region between a high-transmittance porous state (similar to 99.0%) and a low-transmittance nonporous state (similar to 90.0%) was realized by alternate treatments of PS-selective solvent and linear aliphatic acids. This reversible erasure-reconstruction porous structure for switching between AR (98.0%) and non-AR (90.0%) properties could be recycled by at least four times.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000306441100033
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47725]
专题	中国科学院化学研究所
通讯作者	Han, Yanchun
作者单位	Chinese Acad Sci, Grad Sch, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiao,Yu, Xinhong,Han, Yanchun. Intelligent Reversible Nanoporous Antireflection Film by Solvent-Stimuli-Responsive Phase Transformation of Amphiphilic Block Copolymer[J]. LANGMUIR,2012,28(28):10584-10591.
APA	Li, Xiao,Yu, Xinhong,&Han, Yanchun.(2012).Intelligent Reversible Nanoporous Antireflection Film by Solvent-Stimuli-Responsive Phase Transformation of Amphiphilic Block Copolymer.LANGMUIR,28(28),10584-10591.
MLA	Li, Xiao,et al."Intelligent Reversible Nanoporous Antireflection Film by Solvent-Stimuli-Responsive Phase Transformation of Amphiphilic Block Copolymer".LANGMUIR 28.28(2012):10584-10591.