Cationic latices as cocatalyst in the cobaltphthalocyanine-catalyzed oxidation of 2-mercaptoethanol

K.H. Streun, van, W.J. Belt, E.T.W.M. Schipper, P. Piet, A.L. German

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Samenvatting

3-Methacrylamidopropyltrimethylammonium chloride (I) homopolymer and I-styrene copolymer were tested as cocatalysts in the autoxidn. of 2-mercaptoethanol to 2,2'-dithiodiethanol in the presence of tetra-Na Co(II) phthalocyaninetetrasulfonate (II). Both polymer systems enhanced the catalytic activity compared with the polymer-free II-contg. system. The systems invariably showed an enzyme-like behavior. However, the stability after successive runs was not quite satisfactory. The obsd. catalytic activities and spectrophotometric measurements indicated that, in addn. to a high surface charge d., flexible polymeric cationic chains of sufficient length were also necessary to enhance the activity of II-bound latex systems in thiol oxidn
Originele taal-2Engels
Pagina's (van-tot)245-260
TijdschriftJournal of Molecular Catalysis
Volume71
Nummer van het tijdschrift2
DOI's
StatusGepubliceerd - 1992

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