Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Volume 41 , Issue 3
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  • Hideki Sakai, Shingo Taki, Koji Tsuchiya, Atsutoshi Matsumura, Kenichi ...
    2012 Volume 41 Issue 3 Pages 247-248
    Published: March 05, 2012
    Released: February 25, 2012
    JOURNALS OPEN ACCESS
    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 × 10 to 2.1 × 10−3 Pa s.
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