KINETIC STUDIES OF A REDOX POLYMERIZATION

Kinetic studies of some redox reactions of trithionate ion

Yeast actin: polymerization kinetic studies of wild type and a poorly polymerizing mutant.

Wild-type actin and a mutant actin were isolated from yeast (Saccharomyces cerevisiae) and the polymerization properties were examined at pH 8.0 and 20 degrees C. The polymerization reaction was followed either by an increase in pyrene-labeled actin fluorescence or by a decrease in intrinsic fluorescence in the absence of pyrene-labeled actin. While similar to the properties of skeletal muscle ...

Redox reactions of a Ru(III)-edta complex with thioamino acids. Kinetic and mechanistic studies.

The kinetics of reduction of [Ru(III)(edta)pz]⁻ (edta⁴⁻ = ethylenediaminetetraacetate; pz = pyrazine) by thioamino acids (RSH = cysteine, glutathione) resulting in the formation of a red [Ru(II)(edta)pz]²⁻ species (λ(max) = 462 nm) has been studied spectrophotometrically using both conventional mixing and stopped-flow techniques. The time course of the reaction was followed as a function of [RS...

Redox multiphoton polymerization for 3D nanofabrication.

We report for the first time on the redox multiphoton polymerization of an organic-inorganic composite material, in which one of the components, a vanadium metallo-organic complex, initiates the polymerization. The composite employs multiphoton absorption to self-generate radicals by photoinduced reduction of the metal species from vanadium (V) to vanadium (IV). We exploit this material for the...

A Kinetic Study of the Emulsion Polymerization of Vinyl Acetate

This report deals with the chemically and the radiation-initiated emulsion polymerization of vinyl acetate. In experiments with potassium persulphate as initiator and sodium lauryl sulphate (SLS) as emulsifier the rate of polymerization is approximately proportional to the square root of initiator concentration and to the 0.25 power of the number of particles. The number of particles is proport...