Long-lasting dashed waves in a reactive microemulsion

Jorge CARBALLIDO-LANDEIRA; Igal BERENSTEIN; Pablo TABOADA; Victor MOSQUERA; Vladimir K VANAG; Irving R EPSTEIN; Vicente PEREZ-VILLAR; Alberto P MUNUZURI

doi:10.1039/b714705h

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Long-lasting dashed waves in a reactive microemulsion

Journal article

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Long-lasting dashed waves in a reactive microemulsion

Jorge CARBALLIDO-LANDEIRA, Igal BERENSTEIN, Pablo TABOADA, Victor MOSQUERA, Vladimir K VANAG, Irving R EPSTEIN, Vicente PEREZ-VILLAR and Alberto P MUNUZURI

Physical Chemistry Chemical physics : PCCP, Vol.10(8), pp.1094-1096

2008

DOI: https://doi.org/10.1039/b714705h

PMID: 18270609

Abstract

Colloidal state and disperse state

Emulsions. Microemulsions. Foams

Chemical Reactions

Physical Chemistry

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.

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Title: Long-lasting dashed waves in a reactive microemulsion
Creators: Jorge CARBALLIDO-LANDEIRA (Author) - Group of Nonlinear Physics, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
Igal BERENSTEIN (Author) - Group of Nonlinear Physics, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
Pablo TABOADA (Author) - Group of Colloids and Polymer Physics, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
Victor MOSQUERA (Author) - Group of Colloids and Polymer Physics, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
Vladimir K VANAG (Author) - Department of Chemistry and Volen Center for Complex Systems, MS 015. Brandeis University, Waltham, Massachusetts 02454-9110, United States
Irving R EPSTEIN (Author) - Department of Chemistry and Volen Center for Complex Systems, MS 015. Brandeis University, Waltham, Massachusetts 02454-9110, United States
Vicente PEREZ-VILLAR (Author) - Group of Nonlinear Physics, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
Alberto P MUNUZURI (Author) - Group of Nonlinear Physics, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain
Publication Details: Physical Chemistry Chemical physics : PCCP, Vol.10(8), pp.1094-1096
Publisher: Royal Society of Chemistry; Cambridge
Identifiers: 9923958145401921
Academic Unit: Department of Chemistry; Benjamin and Mae Volen National Center for Complex Systems; Interdepartmental Program in Neuroscience
Language: English
Resource Type: Journal article

Long-lasting dashed waves in a reactive microemulsion

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