Adsorption-desorption of silica nanoparticles on poly(ethylene glycol) brushes grafted onto au substrate studied by quartz crystal microbalance
文献类型：期刊论文
| 作者 | Wang DP ; Yang MP ; Dong ZX ; Bo SQ ; Ji XL |
| 刊名 | chemical research in chinese universities
 |
| 出版日期 | 2013 |
| 卷号 | 29期号:4页码:820-824 |
| 关键词 | POLYMER BRUSHES SURFACE TRANSITION CHEMISTRY CHAINS LAYERS |
| ISSN号 | 1005-9040 |
| 通讯作者 | ji xl |
| 中文摘要 | the adsorption-desorption of silica nanoparticles(nps) on poly(ethylene glycol)(peg) grafted onto gold(au) substrate was studied by quartz crystal microbalance with dissipation monitoring(qcm-d) technique. the results of frequency and dissipation show that sio2 nps can be adsorbed strongly on peg-sh brushes at ph of 9.6, and a new dense and rigid construction is formed. adjusting the ph from 9.6 to 12.3 resulted in the desorption of silica nps from the peg brushes because of a significant weakening of the hydrogen bond between the silica nps and peg chains. in addition, the viscoelastic properties of the system during the adsorption-desorption process were also analyzed via the relationship between the normalized frequency(delta f/n) and mass. and the corresponding atomic force microscopy(afm) images also exhibit morphological changes during the above process, consistent with the changes in viscoelasticity. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000322200100042 |
| 公开日期 | 2014-04-15 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/49703]  |
| 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 | Wang DP,Yang MP,Dong ZX,et al. Adsorption-desorption of silica nanoparticles on poly(ethylene glycol) brushes grafted onto au substrate studied by quartz crystal microbalance[J]. chemical research in chinese universities,2013,29(4):820-824. |
| APA | Wang DP,Yang MP,Dong ZX,Bo SQ,&Ji XL.(2013).Adsorption-desorption of silica nanoparticles on poly(ethylene glycol) brushes grafted onto au substrate studied by quartz crystal microbalance.chemical research in chinese universities,29(4),820-824. |
| MLA | Wang DP,et al."Adsorption-desorption of silica nanoparticles on poly(ethylene glycol) brushes grafted onto au substrate studied by quartz crystal microbalance".chemical research in chinese universities 29.4(2013):820-824. |
入库方式： OAI收割
来源：长春应用化学研究所
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