Permeability of Polypropylene WRT Methanol

[JMOwen]

I'm trying to find out the transfer rate of methanol through a ~1mm sheet of Polypropylene. Can any one help?

I've done a fairly extensive search on the web and have good data for HDPE which is a reasonable match I beleive but its PP data that I specifically require.

Thanks for your help

 

[kenvlach]

This book may help: Permeability and Other Film Properties of Plastics and Elastomers 706 pages, ©1995, ISBN 1-884207-14-6, Electronic ISBN: 1-59124-285-1.

It has a section 'Permeability Properties of polypropylene' and also, a table on 'Permeation of Methyl Alcohol.' However, having only the abstract & TOC, I cannot verify it actually has data for methanol permeation through PP.

http://www.knovel.com/knovel2/Toc.jsp?BookID=376

Another reference to try is Lange's Handbook of Chemistry, but I kind of recall only permeation data for gases & water vapor.