Search results for "Electròlisi"

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Facile crosslinking of poly(vinylpyrrolidone) by electro-oxidation with IrO2-based anode under potentiostatic conditions

2018

Abstract: The modification of polymer architectures by reaction with chemically adsorbed hydroxyl radicals has been thoroughly investigated by electrolyzing dilute aqueous solutions of the biocompatible polymer poly(vinylpyrrolidone) (PVP), using an undivided electrolytic cell with a Ti/IrO2–Ta2O5(DSA®) anode. Several electrolyses were performed to assess the influence of the applied potential, the circulated charge and the PVP concentration, which was always kept low to avoid chain overlapping. From the results obtained, it can be concluded that the electro-oxidation of PVP solutions using a cheap anode is an effective method to crosslink initially isolated polymer chains, eventually incre…

Materials Chemistry2506 Metals and AlloysRadicals (Chemistry)Materials sciencePolymersElectrolytic cellGeneral Chemical EngineeringRadicalmacromolecular substances02 engineering and technologyPoly(vinylpyrrolidone)010402 general chemistryElectrochemistry01 natural sciencesElectrosynthesiElectrolysisNanogelAdsorptionElectròlisiMaterials ChemistryElectrochemistryChemical Engineering (all)chemistry.chemical_classificationCrosslinkingAqueous solutiontechnology industry and agricultureDimensionally stable anodeOxidació electroquímicaRadicals (Química)PolymerSettore ING-IND/27 - Chimica Industriale E Tecnologica021001 nanoscience & nanotechnologyPolímers0104 chemical sciencesAnodeElectrolytic oxidationchemistryChemical engineeringSettore CHIM/07 - Fondamenti Chimici Delle Tecnologie0210 nano-technologyHydroxyl radicalElectrode potentialJournal of Applied Electrochemistry
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