Photochemical Control of Viscosity Using Sodium Cinnamate as a Photoswitchable Molecule

被引：21

作者：

Sakai, Hideki ^{[1
,2
]}

Taki, Shingo ^{[1
]}

Tsuchiya, Koji ^{[2
,3
]}

Matsumura, Atsutoshi ^{[1
]}

Sakai, Kenichi ^{[1
,2
]}

Abe, Masahiko ^{[1
,2
]}

机构：

[1] Tokyo Univ Sci, Fac Sci & Technol, Noda, Chiba 2788510, Japan

[2] Tokyo Univ Sci, Res Inst Sci & Technol, Shinjuku Ku, Tokyo 1628601, Japan

[3] Tokyo Univ Sci, Fac Sci, Shinjuku Ku, Tokyo 1628601, Japan

来源：

CHEMISTRY LETTERS | 2012年 / 41卷 / 03期

关键词：

SURFACTANTS; TRANSPORT; CATIONS;

D O I：

10.1246/cl.2012.247

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigated the formation of a high-viscosity wormlike-micelle solution consisting of a mixed aqueous solution containing the cationic surfactant cetyltrimethylammonium bromide (CTAB) and sodium cinnamate (NaCin) and control of the solution viscosity by photoisomerization of the NaCin. The aqueous CTAB/NaCin solution exhibited higher zero-shear viscosity than a classic wormlike micelle-forming system CTAB/sodium salicylate of the same concentration. UV irradiation of the aqueous CTAB/NaCin wormlike-micelle solution resulted in a remarkable decrease in its viscosity, from 6.6 x 10 to 2.1 x 10(-3) Pa s.

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收藏

页码：247 / 248

页数：2

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