A potentiostatic study of oxygen transport through poly(2-ethoxyethyl methacrylate-co-2,3-dihydroxypropylmethacrylate) hydrogel membranes.

Biomaterials

Departamento Termodinamica Aplicada, Universidad Politécnica de Valencia, Camino de Vera s/n. 46020-Valencia, Spain.

Published: June 2005

AI Article Synopsis

  • This study examines the oxygen permeability and diffusion coefficients of hydrogel membranes created from copolymers of EEMA and MAG, focusing on varying ratios of the monomers.
  • Oxygen transport properties were measured using electrochemical methods, specifically by assessing the steady-state current in the membranes after radical polymerization.
  • The findings were analyzed in relation to the membranes' fractional free volumes, cohesive energy densities, and glass transition temperatures.

Article 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.

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Source
http://dx.doi.org/10.1016/j.biomaterials.2004.09.061DOI Listing

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