Hybrid Langmuir and Langmuir-Blodgett films composed of amphiphilic cyclodextrins and hydrophobic azobenzene derivative

被引:7
作者
Matsuzawa, Y
Noguchi, S
Sakai, H
Abe, M
Matsumoto, M
机构
[1] Natl Inst Adv Ind Sci & Technol, Nanotechnol Res Inst, Tsukuba, Ibaraki 3058565, Japan
[2] Tokyo Univ Sci, Fac Sci & Technol, Noda, Chiba 2788510, Japan
关键词
hydrophobic/hydrophilic interaction; hydrophobic cavity; uv-vis absorption spectra; orientation; CIS-TRANS ISOMERIZATION; AIR-WATER-INTERFACE; BETA-CYCLODEXTRIN; MONOLAYERS; PHOTOISOMERIZATION; RECOGNITION; COMPLEXES; LIGHT;
D O I
10.1016/j.tsf.2005.12.160
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Hybrid Langmuir and Langmuir-Blodgett (LB) films consisting of amphiphilic cyclodextrins (CDs) and hydrophobic azobenzene were fabricated. Due to the larger cross-sectional area of the CD core compared with the sum of the cross-sectional areas of the attached alkyl chains, the films had free space in the hydrophobic regions. Azo(p-Hexyl) having hydrophobic terminal chains was accommodated in the free space, whereas the usage of an azobenzene derivative bearing hydrophilic groups led to the phase separation. The average tilt angle of Azo(p-Hexyl) gave minima when the free space was just filled with Azo(p-Hexyl). Photoisomerization of azobenzenes in the hybrid LB films was studied. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:292 / 296
页数:5
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