Effects of non-ionic micelles on transient chaos in an unstirred Belousov–Zhabotinsky reaction

作者: M. Rustici , R. Lombardo , M. Mangone , C. Sbriziolo , V. Zambrano

DOI: 10.1039/B103532K

关键词: Critical micelle concentrationMicellePulmonary surfactantBelousov–Zhabotinsky reactionAqueous solutionEtherChemistryChemical engineeringInduction periodKineticsChromatography

摘要: The behaviour of the Ce(IV)-catalyzed Belousov–Zhabotinsky (BZ) system has been monitored at 20.0°C in unstirred batch conditions absence and presence different amounts non-ionic micelle-forming surfactants hexaethylene glycol monodecyl ether (C10E6) monotetradecyl (C14E6). influence on both kinetics oxidation malonic acid (MA) by Ce(IV) species BZ reaction stirred also studied over a wide surfactant concentration range. experimental results have shown that, conditions, concentrations below critical micelle (c.m.c.) no significant change dynamics occurs. Beyond this micelles forces to undergo chaos → quasi-periodicity → period-1 transition. Thus, considered as bifurcation parameter for Ruelle–Takens–Newhouse (RTN) scenario. Addition increasing effect between MA Ce(IV), but it influences oscillatory parameters system. At c.m.c. all are practically unaffected surfactant, while beyond value induction period is same aqueous solution oscillation duration rising portion cycle decrease. In cases, trends ascribed enhancement medium viscosity due micelles.

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