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Homework Help: Diffusion rate- pentane in polystyrene

  1. Aug 19, 2012 #1
    For part of my coursework I am asked to look at gas application in polymer manufacture and while looking through sources I found articles on the use of pentane in polystyrene resin. I was wondering at what rate the pentane diffuses out of the polystyrene? Any equations would help tremendously as I can't find any online.
  2. jcsd
  3. Aug 19, 2012 #2
    I would say that this problem is an application of Fourier's Equation. It is similar to transient heat transfer. You'll have to obtain a diffusion coefficient.
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