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Simultaneous diffusion of benzyl alcohol into plasticized poly(vinyl chloride) and of plasticizer from polymer into liquid
Author(s) -
Messadi D.,
Vergnaud J. M.
Publication year - 1981
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1981.070260718
Subject(s) - plasticizer , benzyl alcohol , phthalate , vinyl alcohol , vinyl chloride , polymer , materials science , diffusion , polymer chemistry , polyvinyl chloride , alcohol , chemistry , organic chemistry , composite material , copolymer , catalysis , physics , thermodynamics
The diffusion of benzyl alcohol and plasticizer in compression‐molded sheets of plasticized poly(vinyl chloride) was studied over the temperature range 30–55°C. A simultaneous diffusion occurred for benzyl alcohol into polymer and for dioctyl phthalate as plasticizer from polymer into liquid when the polymer was soaked in benzyl alcohol. The concentration of benzyl alcohol in polymer increased, rose to a maximum, and then decreased. Diffusion coefficients were measured by considering a nonsteady‐state phenomenon for plasticizer concentration of 25, 38, and 50 wt %, both for dioctyl phthalate and benzyl alcohol. Plasticizer concentration and temperature were found to play an important role.