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Determining permeability and diffusion rates in polymer films and packaging materials
1Surface Measurement Systems Ltd, London, UK.
Medical Device Technology
|April 7, 1998
Abstract:
This article describes a rapid and effective means of calculating diffusion and permeability constants for a range of polymer films and packaging materials with various vapours. The sealed diffusion-cell method, in combination with a high performance DVS-1 gravimetric analysis system, provides fundamental data for thin films and rapid screening of composite films when designing advanced packaging systems or calculating potential shelf-life of packaged devices.