Polarity-reversal-producing phase transfer of hydrophilic silver nanoclusters capped by a hyperbranched polymer from water to nonpolar organic solvents

	Polarity-reversal-producing phase transfer of hydrophilic silver nanoclusters capped by a hyperbranched polymer from water to nonpolar organic solvents
	Qu, Fei 1,2; Niu, Shuwen 1,2; You, Jinmao 1,2,3
刊名	journal of applied polymer science
	2016-03-15
卷号	133 期号:11
关键词	nanoparticles nanowires and nanocrystals phase behavior polyelectrolytes spectroscopy
英文摘要	hyperbranched poly(ethylene imine) (pei)-capped ag nanoclusters, synthesized starting from an aqueous environment, dispersed well in water and most polar organic solvents. however, with the addition of 1,4-dioxane, the pei-capped ag nanoclusters could be separated completely to obtain hydrophilic and hydrophobic ag nanoclusters. through this facile method, the successful phase transfer of pei-capped ag nanoclusters from the aqueous phase to the nonpolar organic phase, such as from water to carbon tetrachloride, chloroform, and methylene bichloride, was easily realized. the polarity reversal of ag nanoclusters were considered to be associated with the conformational change of pei on the basis of the hydrophobic methylene groups of polymer backbone facing the external side or internal side, and this polarity reversal was irreversible. moreover, peis with higher molecular weights showed a higher efficiency of phase transfer of the ag nanoclusters. (c) 2015 wiley periodicals, inc.
WOS标题词	science & technology ; physical sciences
类目[WOS]	polymer science
研究领域[WOS]	polymer science
关键词[WOS]	ag nanoclusters ; gold nanoclusters ; aqueous-solution ; selective detection ; fluorescent ; clusters ; ions
收录类别	SCI
语种	英语
WOS记录号	WOS:000367911400025
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/6504]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.Qufu Normal Univ, Key Lab Life Organ Anal, Qufu 273165, Shandong, Peoples R China 2.Qufu Normal Univ, Key Lab Pharmaceut Intermediates & Anal Nat Med, Qufu 273165, Shandong, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810001, Peoples R China
推荐引用方式 GB/T 7714	Qu, Fei,Niu, Shuwen,You, Jinmao. Polarity-reversal-producing phase transfer of hydrophilic silver nanoclusters capped by a hyperbranched polymer from water to nonpolar organic solvents[J]. journal of applied polymer science,2016,133(11).
APA	Qu, Fei,Niu, Shuwen,&You, Jinmao.(2016).Polarity-reversal-producing phase transfer of hydrophilic silver nanoclusters capped by a hyperbranched polymer from water to nonpolar organic solvents.journal of applied polymer science,133(11).
MLA	Qu, Fei,et al."Polarity-reversal-producing phase transfer of hydrophilic silver nanoclusters capped by a hyperbranched polymer from water to nonpolar organic solvents".journal of applied polymer science 133.11(2016).