Two-phase diffusion: Diffusion through polymers and polymer blends

✍ Scribed by T.M. Connelly; J.C.R. Turner

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 492 KB
• Volume: 34
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(79)85063-0

✦ Synopsis

The apphcation of two-phase conduchvlty theory to dfiuslon, m particular to dlffuslon m polymers and polymer blends, IS dtscussed The petmeabdtty IS seen as the property whch, e g Maxwell's equation may describe, not the drflusum coe$icrent The "energy of acuvaaon" of dtiuslon may not be a useful concept for such systems Measurements of permeabtbty of He, A, O2 and paraxylene through blends of polyethylene and poly-propylene are shown to be conststent with Maxwell's results