Effect of block sequence and block length on the stimuli-responsive behavior of polyampholyte brushes: hydrogen bonding and electrostatic interaction as the driving force for surface rearrangement

	Effect of block sequence and block length on the stimuli-responsive behavior of polyampholyte brushes: hydrogen bonding and electrostatic interaction as the driving force for surface rearrangement
	Yu K ; Han YC
刊名	soft matter
	2009
卷号	5 期号:4 页码:759-768
关键词	TRANSFER RADICAL POLYMERIZATION FIELD LATTICE THEORY POLYELECTROLYTE BRUSHES SPHERICAL-PARTICLES COPOLYMER BRUSHES AQUEOUS-SOLUTIONS CHARGED POLYMERS MICELLES COMPLEXES COLLAPSE
ISSN号	1744-683x
通讯作者	han yc
中文摘要	diblock polyampholyte brushes with different block sequences (si/sio2/poly(acrylic acid)-b-poly (2-vinylpyridine) (paa-b-p2vp) brushes and si/sio2/p2vp-b-paa brushes) and different block lengths were synthesized by sequent surface-initiated atom transfer radical polymerization (atrp). the paa block was obtained through hydrolysis from the corresponding poly(tert-butyl acrylate). the polyampholyte brushes demonstrated unique ph-responsive behavior. in the intermediate ph region, the brushes exhibited a less hydrophilic wetting behavior and a rougher surface morphology due to the formation of polyelectrolyte complex through electrostatic interaction between oppositely charged blocks. in the low ph and high ph regions, the rearrangement of polyampholyte brushes showed great dependence on the block sequence and block length. the polyampholyte brushes with p2vp-b-paa sequence underwent rearrangement during alternative treatment by acidic aqueous solution (low ph value) and basic aqueous solution (high ph value).
收录类别	SCI
语种	英语
WOS记录号	WOS:000263272300009
公开日期	2010-05-27
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/12097]
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	Yu K,Han YC. Effect of block sequence and block length on the stimuli-responsive behavior of polyampholyte brushes: hydrogen bonding and electrostatic interaction as the driving force for surface rearrangement[J]. soft matter,2009,5(4):759-768.
APA	Yu K,&Han YC.(2009).Effect of block sequence and block length on the stimuli-responsive behavior of polyampholyte brushes: hydrogen bonding and electrostatic interaction as the driving force for surface rearrangement.soft matter,5(4),759-768.
MLA	Yu K,et al."Effect of block sequence and block length on the stimuli-responsive behavior of polyampholyte brushes: hydrogen bonding and electrostatic interaction as the driving force for surface rearrangement".soft matter 5.4(2009):759-768.