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Some features of gas diffusion in crystalline polymers

โœ Scribed by A.G. Savin; T.K. Shaposhnikova; V.L. Karpov; T.I. Sogolova; V.A. Kargin


Book ID
118358569
Publisher
Elsevier Science
Year
1968
Weight
602 KB
Volume
10
Category
Article
ISSN
0032-3950

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Gas diffusion in partially crystalline p
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In this work, a phenomenological model for the gas diffusion in partially crystalline polymers using differential effective medium theory is presented. By making an analogy with the power law known as Archie's law which relates the d.c. conductivity of a brine saturated porous rock to its porosity;

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A molecular model for diffusion of gases and vapors of low-molecular weight at low pressures through semicrystalline polymer films is developed. The formulation of a molecular model allows us to consider the temperature dependence a t constant penetrant concentration of the effective diffusion coeff