Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Polarity-reversal-producing phase transfer of hydrophilic silver nanoclusters capped by a hyperbranched polymer from water to nonpolar organic solvents | |
Qu, Fei1,2; Niu, Shuwen1,2; You, Jinmao1,2,3 | |
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). |
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