title: A potentiostatic study of oxygen transport through poly(2-ethoxyethyl methacrylate-co-2,3-dihydroxypropylmethacrylate) hydrogel membranes.
abstract: The oxygen permeability and diffusion coefficients of hydrogel membranes prepared with copolymers of 2-ethoxyethyl methacrylate (EEMA)/2,3-dihydroxypropylmethacrylate (MAG) with mole fraction of the second monomer in the range between 0 and 0.75 are described. Values of the permeability and diffusion coefficients of oxygen are determined by using electrochemical procedures involving the measurement of the steady-state current in membranes prepared by radical polymerization of the monomers. The results obtained for the transport properties were analyzed taking into account the fractional free volumes, the cohesive energy densities and the glass transition temperatures of the hydrogels.
authors.affiliation: Departamento Termodinamica Aplicada, Universidad Politécnica de Valencia, Camino de Vera s/n. 46020-Valencia, Spain. vicommo@ter.upv.es
authors.forename: Vicente
authors.initials: V
authors.lastname: Compañ
authors.forename: Pilar
authors.initials: P
authors.lastname: Tiemblo
authors.forename: F
authors.initials: F
authors.lastname: García
authors.forename: J M
authors.initials: JM
authors.lastname: García
authors.forename: Julio
authors.initials: J
authors.lastname: Guzmán
authors.forename: Evaristo
authors.initials: E
authors.lastname: Riande
mesh_terms: D001672:Biocompatible Materials / Q000032:analysis / Q000737:chemistry*; D004058:Diffusion; D004563:Electrochemistry / Q000379:methods*; D020100:Hydrogels / Q000032:analysis / Q000737:chemistry*; D008422:Materials Testing / Q000379:methods; D008689:Methacrylates / Q000032:analysis / Q000737:chemistry*; D008768:Methylmethacrylates / Q000032:analysis / Q000737:chemistry*; D010100:Oxygen / Q000032:analysis / Q000737:chemistry*; D010539:Permeability
chemical_list: C102901:2,3-dihydroxypropylmethacrylate; D001672:Biocompatible Materials; D020100:Hydrogels; D008689:Methacrylates; D008768:Methylmethacrylates; C029263:2-ethoxy ethyl methacrylate; D010100:Oxygen