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Wormlike Micelle Formation and Rheological Behavior in the Aqueous Solutions of Mixed Sulfate Gemini Surfactant without Spacer Group and Dodecyltrimethylammonium Bromide
The rheological behavior of the aqueous solutions of mixed sulfate gemini surfactant with no spacer group, referred to as d-C12S, and dodecyltrimethylammonium bromide (C12TABr) at a total concentration of 100 mmol,L-1 but different molar ratios of ClzTABr to d-C12S (a1) was investigated using steady...
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Published in: | Chinese journal of chemistry 2011-10, Vol.29 (10), p.2003-2006 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The rheological behavior of the aqueous solutions of mixed sulfate gemini surfactant with no spacer group, referred to as d-C12S, and dodecyltrimethylammonium bromide (C12TABr) at a total concentration of 100 mmol,L-1 but different molar ratios of ClzTABr to d-C12S (a1) was investigated using steady rate and frequency sweep measurements. The wormlike micelles were formed over a narrow a1 range of 0.20-0.27. The viscoelastic solutions exhibited Maxwell fluid behavior. At the optimum molar ratio of 0.25, the zero-shear viscosity was as high as 600 paos and the length of the mixed wormlike micelle was about 0.45-0.85 pm. The present result provides an exam- ple to construct long wormlike micelles by anionic gemini surfactant. |
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ISSN: | 1001-604X 1614-7065 |
DOI: | 10.1002/cjoc.201180348 |