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Rheological properties of salt-free symmetry-quaternary ammonium gemini surfactants aqueous solutions

Hong, Yu et al.

Physics and chemistry of liquids -- Taylor & Francis -- Volume: 52 1; (pages 78-87) -- 2014

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  • Title:
    Rheological properties of salt-free symmetry-quaternary ammonium gemini surfactants aqueous solutions
  • Author: Hong, Yu;
    Shen, Yi Ding;
    Yang, Xiao Wu;
    Liu, Guan Jun;
    Zhang, Lin
  • Found In: Physics and chemistry of liquids. Volume 52:Number 1(2014); 20140102; 78-87
  • Journal Title: Physics and chemistry of liquids
  • Subjects: Liquids; LCSH: Liquids; Dewey: 530.4205
  • Rights: Licensed
  • Publication Details: Taylor & Francis
  • Abstract:

    The rheological behaviour of solutions of dimethylene-1,2-bis (tetradecyl ammonium bromide) (GS14-2-14), dimethylene-1,2-bis (hexadecyl ammonium bromide) (GS16-2-16) and dimethylene-1,2-bis (octadecyl ammonium bromide) (GS18-2-18) at a surfactant mass concentration of 20 g L−1, is investigated, respectively, as a function of temperature and shear rate by dynamic-state rheological measurements. It is confirmed that the elastic or storage modulus (G′) and the viscous or loss modulus (G′′) are reduced first and then be equal under the increase of temperature. When the angular frequency is improved, G′ and G′′ appear to be increased first and then become straight. These results are in agreement with the prediction of linear viscoelasticity theory of pseudoplastic fluid. However, the quantitative analysis of the results (Cole–Cole plots, loss factor tgδ and dynamic viscosity η′(ω)) on the basis of the theory reveals some inconsistencies. Those results can be analysed by shear-thinning effect and shear-induced effect separately.


  • Identifier: Journal ISSN: 0031-9104
  • Publication Date: 2014
  • Physical Description: Electronic
  • Shelfmark(s): ELD Digital store
    6478.200000
  • UIN: ETOCvdc_100033142818.0x000001

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