Micellization Behavior of the 14‐2‐14 Gemini Surfactant with Some Conventional Surfactants at Different Temperatures

Journal of Surfactants and Detergents - Tập 14 Số 2 - Trang 235-244 - 2011
Tarlok S. Banipal1, Ashwani Kumar Sood1, K. J. Singh1
1Department of Chemistry, Guru Nanak Dev University, 143 005 Amritsar, Punjab, India

Tóm tắt

AbstractMixed micellization behavior of the dimeric cationic surfactant ethanediyl‐1,2‐bis(dimethyl tetradecyl ammonium bromide) with monomeric cationic surfactants cetyltrimethyl ammonium bromide (CTAB), cetylpyridinium chloride (CPC), tetradecyl dimethyl benzyl ammonium chloride (C14BCl) and cetyl dimethyl benzyl ammonium chloride (C16BCl) was studied in aqueous and aqueous polyethylene glycol (PEG) solutions at various temperatures (298.15, 308.15 and 318.15 K) using conductometric and viscometric methods. The behavior of these mixed systems was analyzed in light of Rubingh's regular solution theory. The conductivity study indicates that the above systems behave nonideally with mutual synergism at 298.15 and 308.15 K, whereas antagonistic behavior is exhibited at 318.15 K. In the presence of PEG solution, various thermodynamic parameters associated with transfer of surfactant monomers from the medium consisting of polymer‐free mixed micelles to polymer‐bound mixed micelles like ∆Gto, ∆Hto and ∆Sto at various temperatures were evaluated and discussed. The viscosity study shows that in aqueous solutions all these combinations exhibit significant negative departure in the relative viscosity (ηr) from the additivity rule at 298.15 and 308.15 K, whereas at 318.15 K these combinations (except in the case of C14BCl) follow the additivity rule. In presence of 5% PEG solution, all the combinations show positive departure from the additivity rule except the combination with C14BCl which shows negative departure at all the studied temperatures.

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Tài liệu tham khảo

10.1021/la801301v

10.1021/jp044580o

10.1016/j.colsurfa.2008.10.036

10.1016/j.jcis.2006.09.019

10.1016/0021-9797(84)90130-9

10.1021/j100234a030

10.1006/jcis.1997.4924

10.1126/science.2781283

10.1007/BF01521133

10.1007/s11743-001-0157-5

10.1021/ja00075a025

10.1016/j.jcis.2005.01.099

10.1006/jcis.2000.7311

10.1016/S0927-7757(98)00497-X

10.1021/jp963402v

10.1016/j.colsurfa.2005.12.022

Zana R, Lévy H, 1997, Alkanediyl‐α, ω‐bis(dimethyl alkylam‐monium bromide) surfactants (dimeric surfactants) part 6, CMC of the ethanediyl‐1, 2‐bis (dimethyl alkylammonium bromide) series. Colloids Surf A, 127, 229

10.1016/j.jcis.2004.12.044

10.1016/j.colsurfa.2006.09.031

10.1021/jp0123029

Sood AK, 2010, Study of micellization behavior of some alkyldimethylbenzyl ammonium chloride surfactants in presence of polymers, J Dispersion Sci Techn, 30, 62

10.1021/jp802243f

Rubingh DN, 1979, Solution chemistry of surfactants, vol 1, 337, 10.1007/978-1-4615-7880-2_15

10.1080/01932690701756735

10.1016/j.jcis.2008.09.034

10.1016/j.colsurfa.2004.01.030

10.1016/j.colsurfa.2007.04.031

Motomura K, 1993, Mixed Surfactant System, 99

10.1016/j.jcis.2007.06.062

10.1016/j.jcis.2009.01.041

10.1016/j.colsurfa.2009.08.033

10.1039/a703310i

10.1016/j.jcis.2009.01.065

10.1007/s003960050550

10.1021/la00023a024

10.1007/s00396-006-1502-y

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Thông tin xuất bản

Journal of Surfactants and Detergents

Tập 14 Số 2

235-244

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