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
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