Study of the effect of film thickness on the sorption/desorption properties of ultra thin polymeric films

✍ Scribed by D.A. Buckley; F.G. Belli

• Publisher: Elsevier Science
• Year: 1980
• Weight: 318 KB
• Volume: 5
• Category: Article
• ISSN: 0390-6035
• DOI: 10.1016/0390-6035(80)90018-8

✦ Synopsis

The sorption and desorption of methylene chloride in and from a styrene copolymer is described for ultra thin films in the thickness range of 1.4/2 to 14.8/2. The sorption diffusion coefficient increases with decreasing film thicknesses less than about 3-4/2. This anomaly is explained in terms of a surface oxidized layer. Stress dependence and polymer relaxation effects are ruled out as explanations of this anomaly.