2013 Fiscal Year Final Research Report
Structure and dynamics of liquids confined in mesoporous organosilica
| Project/Area Number |
23550028
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Fukuoka University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
YOSHIDA Koji 福岡大学, 理学部, 助教 (00309890)
INAGAKI Shinji 株式会社豊田中央研究所, 稲垣特別研究室, シニアフェロー (30374086)
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| Project Period (FY) |
2011 – 2013
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| Keywords | メソ細孔物質 / メソポーラス有機シリカ / メソポーラス炭素 / 細孔水の構造 / 細孔水のダイナミクス / X線回折 / 中性子準弾性散乱 / 中性子スピンエコー法 |
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| Research Abstract |
Thermal behavior, structure and dynamic properties of water confined in two types of mesoporous organosilica (PMO), i.e. Ph-PMO where the phenyl groups are embedded in silica matrix, and TMS-Ph-PMO where the silanol groups of Ph-PMO are modified by tetramethyl silane, and Sephadex G15 polymer gels as a model of biological cell have been investigated by differential scanning calorimetry, in situ X-ray diffraction, and neutron spin echo and quasielastic neutron scattering measurements. The hydrogen bonded network of water is more distorted and the translational motion of water molecules is more retarded due to confinement and the interactions with the walls than those of bulk water. The more hydrophobic the wall, the less the activation energy of the translational and rotational motions of a water molecule in confinement.
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[Presentation]2011
Author(s)
K. Yoshida, T. Yamaguchi, S. Kittaka, M.-C. Bellissent-Funel, P. Fouquet, D. Bowron
Organizer
Liquid matter conference
Place of Presentation
Wien (Austria)
Year and Date
20110906-10
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