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

doi:10.1002/APP.43206

NWIPB OpenIR

	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
	2016-03-15
发表期刊	JOURNAL OF APPLIED POLYMER SCIENCE
卷号	133 期号:11
文章类型	Article
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.
关键词	Nanoparticles Nanowires And Nanocrystals Phase Behavior Polyelectrolytes Spectroscopy
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1002/APP.43206
关键词[WOS]	AG NANOCLUSTERS ; GOLD NANOCLUSTERS ; AQUEOUS-SOLUTION ; SELECTIVE DETECTION ; FLUORESCENT ; CLUSTERS ; IONS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China through Youth Fund Project(21405093) ; Scientific Research Foundation of Qufu Normal University(BSQD20130117)
WOS研究方向	Polymer Science
WOS类目	Polymer Science
WOS记录号	WOS:000367911400025
引用统计
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/6504
专题	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).