Zinc peroxide polymer, successful

There are some successful examples of antimicrobial textiles developed based on this slow releasing concept. Durable antibacterial cellulose and cellulose blend fabrics combined with a zinc peroxide polymer were prepared by USDA. Recently, in a similar approach, T. Vigo used magnesium peroxide in finishing of fabrics and achieved durable antimicrobial properties on the materials. Polymers of... 

A process that successfully removes filter-cake contains polysaccharide polymers and certain bridging particles and uses alkaline earth metal peroxides and zinc peroxide in an acidic aqueous solution [499,1239]. On soaking the filter-cake, a loosely adherent mass is left behind on the walls of the borehole. Thereafter, a wash solution in which the bridging particles are soluble is used to remove the remaining filter-cake solids from the sides of the borehole. 

The production of industrially important perfluoroalkane sulfonic acids is generally accomplished by electrochemical fluorination. This method of preparation remains expensive and proceeds in good yields only for short hydrocarbon chains.30 Recently however, Wakselman and Tordeux have described a chemical method for the preparation of trifluoromethane sulfonic acid.31 The procedure involves reaction of a metal selected from zinc, cadmium, manganese, and aluminum with sulfur dioxide in DMF, followed by the introduction of trifluoromethyl bromide under slight pressure. The intermediate sulfinate is subsequently oxidized by hydrogen peroxide, and then hydrolyzed which leads to formation of the trifluoromethane sulfonic acid. Successful extension of the sulfination process to the modification of PCTFE should result in the formation of a sulfinated polymer which can ultimately be oxidized to give a sulfonic-acid modified polymer. 

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