An asymptotic analysis of polymer desorption and skinning

✍ Scribed by David A. Edwards

• Book ID: 101307343
• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 56 KB
• Volume: 8
• Category: Article
• ISSN: 1022-1344
• DOI: 10.1002/(sici)1521-3919(19990101)8:1<10::aid-mats10>3.0.co;2-q

✦ Synopsis

During desorption of penetrant-saturated polymers, a glassy skin can form at the exposed surface. The associated dynamics are not purely Fickian due to viscoelastic relaxation effects in the polymer. A model is presented which captures these nonlocal effects. The motion of the glass-rubber interface and the accumulated desorbed flux are calculated. The model also describes trapping skinning, where an increase in the driving force reduces the amount of penetrant released.