Long-lasting dashed waves in a reactive microemulsion
Copyright policy )Long-lasting dashed waves in a reactive microemulsion
In the Belousov-Zhabotinsky (BZ) reaction carried out in a reverse microemulsion with Aerosol OT as surfactant, the existence of two different sizes of droplets containing the BZ reactants leads to the emergence of segmented (dashed) waves. This bimodal distribution of sizes is stabilized by adding small amounts of the homopolymer poly(ethylene oxide) (PEO). Addition of PEO lengthens the period during which these patterns are observed, so that dashed waves can persist for 12-14 h, in contrast to the 2-3 h found in earlier studies without added polymer.
- University of Santiago de Compostela (USC) Spain
- Brandeis University United States
- University of Santiago de Compostela Spain
- Université Libre de Bruxelles Belgium
Models, Chemical, Models, Spectrophotometry, Water, Emulsions -- chemistry, Chemical, Emulsions, Sciences bio-médicales et agricoles, Water -- chemistry
Models, Chemical, Models, Spectrophotometry, Water, Emulsions -- chemistry, Chemical, Emulsions, Sciences bio-médicales et agricoles, Water -- chemistry
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