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Effect of initial sample anisotropy on the solvent sorption kinetics of glassy poly(2-hydroxyethyl methacrylate)

Authors
Journal
Polymer
0032-3861
Publisher
Elsevier
Publication Date
Volume
33
Issue
3
Identifiers
DOI: 10.1016/0032-3861(92)90732-c
Keywords
  • Poly(2-Hydroxyethyl Methacrylate)
  • Anomalous Transport
  • Diffusion
  • Sorption
  • Swelling Kinetics

Abstract

Abstract When moving solvent fronts meet at the centre of a glassy polymer during sorption of solvent, making the sample entirely rubbery, sudden changes in the area, thickness and sorption rate typically occur. Examination of the sorption of water and methanol by glassy poly(2-hydroxyethyl methacrylate) showed that the magnitudes and directions of these changes can be readily modified by creating anisotropic stresses within the glassy polymer by controlled deformation of the sample prior to solvent sorption. However, the transport mechanism and sorption kinetics were not significantly altered by differing levels of initial sample anisotropy.

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