The Effect of a Magnetic Field on the Generation of Free Radicals in the Interaction of Quaternary Ammonium Compounds with Hydroperoxides.

Autor: Krugovov, D. A., Gatin, A. K., Potapova, N. V., Kondratovich, V. G., Mengele, E. A., Kasaikina, O. T.
Zdroj: Russian Journal of Physical Chemistry B: Focus on Physics; Jun2024, Vol. 18 Issue 3, p656-662, 7p
Abstrakt: The effect of a moderate magnetic field (MF, 600 mT) of a permanent magnet on the generation of radicals (Wi) in mixed micellar systems of quaternary ammonium compounds (QACs) with hydroperoxides (QAC–ROOH) is studied and measured by the inhibitor method. The effect of an MF on the rate of radical polymerization initiated by radicals generated from a surface chemisorbed on a solid QAC carrier during the interaction with the hydroperoxide dissolved in the monomer is evaluated. It is established that in micellar solutions the MF reduces Wi and the magnetic effect (ME) ≈ –0.45. In the case of the radical polymerization of styrene containing cumyl hydroperoxide on the surface of mica plates with a chemisorbed monolayer of QAC (CTAB or ACh), the rate of polymerization and, consequently, Wi increase in the MF, i.e., ME > 0. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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