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Diffusion of water into a photopolymer film
Author(s) -
Best Margaret Evans,
Moylan Christopher R.
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070450102
Subject(s) - gravimetric analysis , diffusion , quartz crystal microbalance , materials science , water vapor , analytical chemistry (journal) , photopolymer , effective diffusion coefficient , polymer , thin film , sorption , chemical engineering , composite material , chemistry , thermodynamics , chromatography , organic chemistry , nanotechnology , polymerization , adsorption , medicine , engineering , radiology , magnetic resonance imaging , physics
Sorption of water vapor into thin films of a crosslinked dimethacrylate UV‐cured polymer was measured by means of a quartz crystal microbalance apparatus. The diffusion coefficient and solubility were obtained. An upper limit to the water vapor diffusion coefficient, namely, the diffusion coefficient for liquid water in intimate contact with the sample, was measured for reference purposes by both gravimetric and infrared spectral techniques. A water uptake value for thick films was obtained gravimetrically as a reference for the thin film value. Measurement of the diffusion coefficient allows the determination of the length of time that the photopolymer could act as an effective water vapor barrier.