Work

Efficient silicon-containing di-chain anionic surfactants for stabilizing oil–water interfaces in microemulsions

Year: 2025

Type: article

Abstract: -alkanes and cycloalkanes, the surfactant AOT-SiC alone stabilizes W/O-µEs over a wide temperature window, but not with the aromatic solvent toluene. Likewise, AOT-SiB forms W/O-µEs, but preferably in aromatic solvents, such as toluene. Contrast-variation small-angle neutron scattering (SANS) measurements indicate that the water droplets in these W/O-µEs are stabilized by surfactant-monolayers. In all of these systems, the droplet morphologies and shapes are correlated with the proximity to (from) the µE-phase stability boundaries. The results show that Si-containing TMS surfactants are effective at O-W interfaces, promoting the ultra-low interfacial tensions necessary for stabilization of µEs. These TMS surfactants offer credible alternatives to environmentally damaging and health-hazardous fluorinated surfactants (FSURFs).

Source: Soft Matter

DOI: 10.1039/d5sm00817d

Authors: Adhip Rahman, Julian Eastoe, Ilona E. Serafin, Georgina L. Moody, Dania M. Khairuldin, Saachi Sennik, Sarah E. Rogers, Robert M. Dalgliesh, Sylvain Prévost

Institutions: University of Bristol, Rutherford Appleton Laboratory, Institut Laue-Langevin

Language: English

Topic: Surfactants and Colloidal Systems

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Funders: Commonwealth Scholarship Commission, Science and Technology Facilities Council

OpenAlex ID: W4417274768

FWCI:

Cites: 51

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