Viscoelasticity of Poly(ethylene glycol) Solutions on Supported Lipid Bilayers via Quartz Crystal Microbalance with Dissipation
文献类型：期刊论文
| 作者 | Zhao, Ziliang1,3; Ji, Xiangling1; Dimova, Rumiana2; Lipowsky, Reinhard2; Liu, Yonggang1,2 |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2015-03-24 |
| 卷号 | 48期号:6页码:1824-1831 |
| 英文摘要 | Supported lipid bilayers of 1,2-dioleoyl-sn-glycero-3-phosphocholine were formed on a silicon oxide substrate, and the viscoelasticity of poly(ethylene glycol) (PEG) solutions above the bilayer was subsequently studied by quartz crystal microbalance with dissipation monitoring. No detectable adsorption of PEG molecules to the bilayer was found over a broad range of PEG molecular weight at various concentrations. The viscoelastic properties of the PEG solutions were obtained from the shifts in the resonance frequency and the energy dissipation factor of the polymer solution in contact with the resonator-supported lipid bilayer. The resulting viscoelastic properties of PEG solutions were found to be in excellent agreement with the Zimm model for linear polymer chains in a good solvent. The excluded volume scaling exponent nu for PEG in water shows an ideal-to-real crossover with increasing molecular weight. The exponent adopts a value of 0.50 for short chains and gradually increases to 0.565 for long chains. The onset of the excluded volume effect of PEG in water, a good solvent, lies in the molecular weight range between 4000 and 8000. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-03 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28496]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Max Planck Inst Colloids & Interfaces, Dept Theory & Biosyst, D-14424 Potsdam, Germany 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Ziliang,Ji, Xiangling,Dimova, Rumiana,et al. Viscoelasticity of Poly(ethylene glycol) Solutions on Supported Lipid Bilayers via Quartz Crystal Microbalance with Dissipation[J]. MACROMOLECULES,2015,48(6):1824-1831. |
| APA | Zhao, Ziliang,Ji, Xiangling,Dimova, Rumiana,Lipowsky, Reinhard,&Liu, Yonggang.(2015).Viscoelasticity of Poly(ethylene glycol) Solutions on Supported Lipid Bilayers via Quartz Crystal Microbalance with Dissipation.MACROMOLECULES,48(6),1824-1831. |
| MLA | Zhao, Ziliang,et al."Viscoelasticity of Poly(ethylene glycol) Solutions on Supported Lipid Bilayers via Quartz Crystal Microbalance with Dissipation".MACROMOLECULES 48.6(2015):1824-1831. |
入库方式： OAI收割
来源：化学研究所
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