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dc.contributor.authorSingla, R
dc.contributor.authorGrieser, F
dc.contributor.authorAshokkumar, M
dc.identifierpii: S1350-4177(10)00187-2
dc.identifier.citationSingla, R., Grieser, F. & Ashokkumar, M. (2011). The mechanism of sonochemical degradation of a cationic surfactant in aqueous solution. ULTRASONICS SONOCHEMISTRY, 18 (2), pp.484-488.
dc.descriptionC1 - Journal Articles Refereed
dc.description.abstractThe sonochemical degradation of the cationic surfactant, laurylpyridinium chloride (LPC), in water was studied at concentrations of 0.1-0.6 mM, all below its critical micelle concentration (15 mM). It has been found that the initial step in the degradation of LPC occurs primarily by a pyrolysis pathway. Chemical analysis of sonicated solutions by gas chromatography, electrospray mass spectrometry, and high performance liquid chromatography reveals that a broad range of decomposition products, hydrocarbon gases and water-soluble species, are produced. Propionamide and acetamide were identified as two of the degradation intermediates and probably formed as the result of the opening of the pyridinium ring following OH radical addition. Most of the LPC is eventually converted into carboxylic acids. The complete mineralization of these carboxylic acids by sonolysis is however a comparatively slow process due to the hydrophilic nature of these low molecular weight products.
dc.subjectPhysical Chemistry of Materials; Expanding Knowledge in the Chemical Sciences
dc.titleThe mechanism of sonochemical degradation of a cationic surfactant in aqueous solution
dc.typeJournal Article
melbourne.peerreviewPeer Reviewed
melbourne.affiliationThe University of Melbourne
melbourne.source.titleUltrasonics Sonochemistry
melbourne.contributor.authorGrieser, Franz
melbourne.contributor.authorAshokkumar, Muthupandian
melbourne.contributor.authorSINGLA, RITU
melbourne.accessrightsThis item is currently not available from this repository

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