Determination of the second CMCs of dodecyl polyoxyethylene polyoxypropylene ether by the methods of cloud point, fluorescence, and viscosity

Authors
Mu, JH Li, GZ Zhang, WC Wang, ZW
Citation
Jh. Mu et al., Determination of the second CMCs of dodecyl polyoxyethylene polyoxypropylene ether by the methods of cloud point, fluorescence, and viscosity, COLL SURF A, 194(1-3), 2001, pp. 1-6
Citations number
12
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
194
Issue
1-3
Year of publication
2001
Pages
1 - 6
Database
ISI
SICI code
0927-7757(200112)194:1-3<1:DOTSCO>2.0.ZU;2-X
Abstract
The second critical micellar concentrations (CMCs) of nonionic surfactant d odecyl polyoxyethylene polyoxypropylene ether C12H25O(EO)(m)(PO)(n)H (LS54: m = 5, n = 4; LS45: m = 4, n = 5; LS36: m = 3, n = 6) were determined by t hree methods: cloud point, steady-state fluorescence and viscosity in paper . A comparison of the results obtained from different experiment shows that the cloud point method is easier than the steady-state fluorescence, and t he viscosity method is not a good method for the second CMCs' determination . (C) 2001 Elsevier Science BN. All rights reserved.