Photoinduced reversible change of fluid viscosity

Hideki Sakai, Yoichi Orihara, Hideki Kodashima, Atsutoshi Matsumura, Takahiro Ohkubo, Koji Tsuchiya, Masahiko Abe

Research output: Contribution to journalArticle

138 Citations (Scopus)

Abstract

We report a reversible photoinduced fluid viscosity change. A small amount of a "photoswitchable" azobenzene-modified cationic surfactant (4-butylazobenzene-4′-(oxyethyl)trimethylammonium bromide, AZTMA) was added to a wormlike micellar solution of cetyltrimethylammonium bromide (CTAB) containing sodium salicylate (NaSal). The trans-AZTMA solution had a remarkably high viscosity as a result of the entangled network of wormlike micelles. UV light irradiation on the trans-AZTMA solution remarkably decreased the viscosity of the solution because the bulky structure of cis-AZTMA is likely to disrupt the network structure of wormlike micelles. This photoinduced viscosity change is perfectly reversible between the trans- and cis-AZTMA solutions.

Original languageEnglish
Pages (from-to)13454-13455
Number of pages2
JournalJournal of the American Chemical Society
Volume127
Issue number39
DOIs
Publication statusPublished - Oct 5 2005
Externally publishedYes

Fingerprint

Viscosity
Fluids
Micelles
Sodium Salicylate
Azobenzene
Cationic surfactants
Ultraviolet Rays
Bromides
Nose
Surface-Active Agents
Ultraviolet radiation
Sodium
Irradiation

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Sakai, H., Orihara, Y., Kodashima, H., Matsumura, A., Ohkubo, T., Tsuchiya, K., & Abe, M. (2005). Photoinduced reversible change of fluid viscosity. Journal of the American Chemical Society, 127(39), 13454-13455. https://doi.org/10.1021/ja053323+

Photoinduced reversible change of fluid viscosity. / Sakai, Hideki; Orihara, Yoichi; Kodashima, Hideki; Matsumura, Atsutoshi; Ohkubo, Takahiro; Tsuchiya, Koji; Abe, Masahiko.

In: Journal of the American Chemical Society, Vol. 127, No. 39, 05.10.2005, p. 13454-13455.

Research output: Contribution to journalArticle

Sakai, H, Orihara, Y, Kodashima, H, Matsumura, A, Ohkubo, T, Tsuchiya, K & Abe, M 2005, 'Photoinduced reversible change of fluid viscosity', Journal of the American Chemical Society, vol. 127, no. 39, pp. 13454-13455. https://doi.org/10.1021/ja053323+
Sakai H, Orihara Y, Kodashima H, Matsumura A, Ohkubo T, Tsuchiya K et al. Photoinduced reversible change of fluid viscosity. Journal of the American Chemical Society. 2005 Oct 5;127(39):13454-13455. https://doi.org/10.1021/ja053323+
Sakai, Hideki ; Orihara, Yoichi ; Kodashima, Hideki ; Matsumura, Atsutoshi ; Ohkubo, Takahiro ; Tsuchiya, Koji ; Abe, Masahiko. / Photoinduced reversible change of fluid viscosity. In: Journal of the American Chemical Society. 2005 ; Vol. 127, No. 39. pp. 13454-13455.
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