Journal
SOFT MATTER
Volume 5, Issue 1, Pages 78-80Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b813234h
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Funding
- Infineum UK Ltd
- University of Bristol
- EPSRC
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A reversible, critical phase separation induced by UV light at 350 nm has been achieved by doping a small amount of photosensitive surfactant into an AOT-stabilised water-in-decane microemulsion. The initial and separated phases were analysed by small-angle neutron scattering (SANS), which suggests irradiation produces two coexisting water-in-oil microemulsions with relative droplet concentrations of 1 : 3. To better understand the effect of the photosurfactant, drop shape analysis tensiometry was used, showing a change in the effectiveness of the interfacial film under different irradiation conditions.
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