Investigation of radical intermediates in polymer sonochemistry


Price, G. J., Garland, L., Comina, J., Davis, M., Snell, D. J. and West, P. J., 2004. Investigation of radical intermediates in polymer sonochemistry. Research on Chemical Intermediates, 30 (7-8), pp. 807-827.

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    There is current interest in using high-intensity ultrasound to perform a range of chemical transformations, including polymerisation reactions. In this work, the technique of radical trapping, primarily using DPPH, has been used to measure radical production rates in a range of monomer and related systems when exposed to high intensity ultrasound. It has been shown that realistic rates of production can be obtained around room temperature equivalent to thermal decomposition rates > 100degreesC, making sonication a viable method for initiating polymerisation. Rates of initiation in a two-phase organic in water system have also been measured. Some of the initiating species have been identified recording the ESR spectra of adducts with spin traps, although further analysis is needed before the complete range of radicals produced can be identified.


    Item Type Articles
    CreatorsPrice, G. J., Garland, L., Comina, J., Davis, M., Snell, D. J. and West, P. J.
    DepartmentsFaculty of Science > Chemistry
    Publisher StatementDRAFT_92_Investigation_of_Radical_Intermediates_in_Polymer_Sonochemistry.pdf: The original publication is available at
    ID Code4874


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