Initiation of lipid autoxidation by ABAP at pH 4-10 in SDS micelles
Malgorzata Musialik1, Marcin Kita, Grzegorz Litwinienko
1Department of Chemistry, Warsaw University, Pasteura, 1, 02-093, Warsaw, Poland.
Abstract:
The rates of radical generation, R(i), by two water soluble initiators: 2,2'-azobis(2-methylpropionamidine) and 2,2'-azobis[2-methyl-N-(2-hydroxyethyl)propionamide], and the lipid soluble 2,2'-azobisisobutyronitrile were measured in an SDS micellar system over a pH range of 4-10. Enhanced values of R(i) at low pH are attributed to Coulombic repulsion of protonated radicals.
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