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Self-assembly and gelation of TX-100 in water

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An Erratum to this article was published on 04 May 2017

Abstract

Self-organization of Triton X-100 (TX-100) surfactants in aqueous dispersion leading to their signature self-assembly is reported based on experimentally determined static structure factor data obtained from small-angle neutron scattering (SANS) experiments. Surfactant gels were formed for dispersions having 40% ≤ [TX-100] ≤ 55% (v/v). An unexplored correlation peak was noticed at a specific wave vector q* whose value increased with surfactant concentration. The form factor data could be described by modeling the micelles as core-shell structures (hydrophobic core with a polar shell). The intermicellar interactions were modeled with hard sphere, sticky hard sphere, and hard sphere in square well potential designations. We used a lattice model based on random walk formalism to theoretically describe this self-assembly, and observed that the cluster size decreased with TX-100 concentration consistent with experimental data. The self-organization of TX-100 in aqueous medium is presented.

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Acknowledgements

RR and PD acknowledge receipt of Senior Research Fellowship from the Council of Scientific and Industrial Research, Government of India. KR is thankful to the Department of Science and Technology, Government of India—Inspire Faculty Award. We also acknowledge the facilitation of PSI Switzerland for small-angle neutron scattering. This work was supported by DST PURSE-II grant from the Department of Science and Technology, Government of India.

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Authors and Affiliations

  1. School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India

    Rahul Ranjan, Pasenjit Das & H. B. Bohidar

  2. Special Center for Nanosciences, Jawaharlal Nehru University, New Delhi, 110067, India

    Kamla Rawat & H. B. Bohidar

  3. Inter University Accelerator Centre, New Delhi, 110067, India

    Kamla Rawat

  4. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400085, India

    V. K. Aswal

  5. Paul Scherrer Institut, 5232, Villigen, Switzerland

    J. Kohlbrecher

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  1. Rahul Ranjan
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  2. Pasenjit Das
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  3. Kamla Rawat
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  4. V. K. Aswal
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  5. J. Kohlbrecher
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  6. H. B. Bohidar
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Correspondence to Kamla Rawat or H. B. Bohidar.

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Additional information

An erratum to this article is available at http://dx.doi.org/10.1007/s00396-017-4109-6.

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Values of Red.χ2 from SASfit, Variance of the Core Radius distribution and value of the Stickiness parameter for different surfactant concentrations as well as the scattering data obtained at BARC INDIA for two more concentrations are also shown, undertaken in this study are included in the Electronic Supplementary Information, ESI.

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Ranjan, R., Das, P., Rawat, K. et al. Self-assembly and gelation of TX-100 in water. Colloid Polym Sci 295, 903–909 (2017). https://doi.org/10.1007/s00396-017-4078-9

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  • DOI: https://doi.org/10.1007/s00396-017-4078-9

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