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Predicting water diffusivity in elastomers
Author(s) -
Aminabhavi Tejraj M.,
Thomas Richard W.,
Cassidy Patrick E.
Publication year - 1984
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760241808
Subject(s) - distilled water , materials science , thermal diffusivity , elastomer , neoprene , absorption of water , arrhenius equation , diffusion , ethylene propylene rubber , thermodynamics , solubility , styrene butadiene , composite material , activation energy , natural rubber , styrene , polymer , organic chemistry , chemistry , copolymer , physics
By the use of water absorption data (rate and equilibrium), the diffusivity of distilled and salt water through Neoprene, styrene‐butadiene, and ethylene‐propylene‐diene elastomers was predicted. Activation parameters were calculated from the Arrhenius plots and were used to calculate heats of solution (all negative). Solubility coefficients ( S ) were calculated from permeability ( P ) and diffusion ( D ) coefficients. For all materials salt water showed a lower D than distilled water but a higher S and P .