Behavior of Polyethylene Glycol Molecules at an Oscillating Solid-Liquid Interface
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- Yoshimoto Minoru
- Department of Information Science and Biomedical Engineering, Graduate School of Science and Engineering, Kagoshima University
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- Yuda Yukiko
- Department of Information Science and Biomedical Engineering, Graduate School of Science and Engineering, Kagoshima University
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- Tanaka Mutsuo
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
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- Kurosawa Shigeru
- Research Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST)
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The behavior of polyethylene glycol (PEG) molecules at an oscillating solid-liquid interface was examined using a quartz crystal microbalance (QCM). The number-average molecular weights (Mn) of PEG molecules were systematically varied. This study revealed that the shift in the energy dissipation factor, ΔD, of the QCM against square root of the density-viscosity product of the PEG solution is linear and has an intercept. Moreover, the systematical analysis revealed that the ΔD slope rapidly decreases with Mn, and the ΔD intercept becomes constant above 1.1×104 g/mol. Those results indicated that the resonant length of PEG molecules moving with the oscillating plate at 9 MHz is 97.6 Å. We also found that the difference between the resonant lengths calculated from ΔD and series resonance-frequency shift, ΔF, is related to the density of the thin PEG layer formed on the gold electrode.
収録刊行物
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- Journal of Oleo Science
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Journal of Oleo Science 63 (1), 75-82, 2014
公益社団法人 日本油化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679068429440
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- NII論文ID
- 130004800081
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- NII書誌ID
- AA11503337
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- COI
- 1:STN:280:DC%2BC2czitFCitg%3D%3D
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- ISSN
- 13473352
- 13458957
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- NDL書誌ID
- 025106169
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- PubMed
- 24389797
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可