Hydration structures of 2-butoxyethanol monomer and micelle in solution

被引:19
作者
Arikawa, Takashi [2 ]
Nagai, Masaya [2 ]
Tanaka, Koichiro [1 ,2 ]
机构
[1] Kyoto Univ, Inst Integrated Cell Mat Sci, Sakyo Ku, Kyoto 6068501, Japan
[2] Kyoto Univ, Grad Sch Sci, Dept Phys, Sakyo Ku, Kyoto 6068502, Japan
关键词
ATTENUATED TOTAL-REFLECTION; ANGLE NEUTRON-SCATTERING; AQUEOUS-SOLUTIONS; BOUND WATER; DIELECTRIC-SPECTROSCOPY; N-BUTOXYETHANOL; TIME; RELAXATION; MIXTURES; RANGE;
D O I
10.1016/j.cplett.2009.06.075
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We determined the hydration numbers of 2-butoxyethanol (2BE) molecules in the monomeric and the micellar form using terahertz time-domain attenuated total reflection spectroscopy. The hydration number of the 2BE monomer is somewhat larger than that of the 2BE molecule in micelles due to the presence of immobilized water molecules around the hydrophobic surface of the 2BE monomer. The hydration number of the 2BE monomer decreases with increasing the temperature, whereas the hydration number of the 2BE micelle is almost unchanged up to 47 degrees C. This indicates that strongly bound hydration water molecules should exist and make a self-organized structure on the micelle surface. (c) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:95 / 101
页数:7
相关论文
共 27 条
[11]   DIELECTRIC-SPECTROSCOPY OF 2-BUTOXYETHANOL WATER MIXTURES IN THE COMPLETE COMPOSITION RANGE [J].
KAATZE, U ;
POTTEL, R ;
SCHUMACHER, A .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (14) :6017-6020
[12]   ON THE EXISTENCE OF BOUND WATER IN BIOLOGICAL-SYSTEMS AS PROBED BY DIELECTRIC-SPECTROSCOPY [J].
KAATZE, U .
PHYSICS IN MEDICINE AND BIOLOGY, 1990, 35 (12) :1663-1681
[13]   Mixing schemes in aqueous solutions of nonelectrolytes: A thermodynamic approach [J].
Koga, Y .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (13) :5172-5181
[14]   HEAT-CAPACITY OF ALCOHOLS IN AQUEOUS-SOLUTIONS IN THE TEMPERATURE-RANGE FROM 5-DEGREES-C TO 125-DEGREES-C [J].
MAKHATADZE, GI ;
PRIVALOV, PL .
JOURNAL OF SOLUTION CHEMISTRY, 1989, 18 (10) :927-936
[15]   DIELECTRIC-RELAXATION TIME AND STRUCTURE OF BOUND WATER IN BIOLOGICAL-MATERIALS [J].
MASHIMO, S ;
KUWABARA, S ;
YAGIHARA, S ;
HIGASI, K .
JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (25) :6337-6338
[16]   MICROWAVE DIELECTRIC STUDY ON BOUND WATER OF GLOBULE PROTEINS IN AQUEOUS-SOLUTION [J].
MIURA, N ;
ASAKA, N ;
SHINYASHIKI, N ;
MASHIMO, S .
BIOPOLYMERS, 1994, 34 (03) :357-364
[17]   Terahertz time-domain attenuated total reflection spectroscopy in water and biological solution [J].
Nagai, Masaya ;
Yada, Hiroyuki ;
Arikawa, Takashi ;
Tanaka, Koichiro .
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 2006, 27 (04) :505-515
[18]   Calorimetric study of the micellization of n-butoxyethanol in water [J].
Onori, G ;
Santucci, A .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (23) :4662-4666
[19]   Observation of immobilized water molecules around hydrophobic groups [J].
Rezus, Y. L. A. ;
Bakker, H. J. .
PHYSICAL REVIEW LETTERS, 2007, 99 (14)
[20]   THz spectroscopy of liquid H2O and D2O [J].
Ronne, C ;
Åstrand, PO ;
Keiding, SR .
PHYSICAL REVIEW LETTERS, 1999, 82 (14) :2888-2891