Get access

Viscoelastic (Non-Fickian) Diffusion

Authors

  • D. De Kee,

    Corresponding author
    1. Department of Chemical and Biomolecular Engineering and Tulane Institute for Macromolecular Engineering and Science (TIMES), Tulane University, New Orleans, LA, U.S. 70118
    • Department of Chemical and Biomolecular Engineering and Tulane Institute for Macromolecular Engineering and Science (TIMES), Tulane University, New Orleans, LA, U.S. 70118
    Search for more papers by this author
  • Q. Liu,

    1. Department of Chemical and Biomolecular Engineering and Tulane Institute for Macromolecular Engineering and Science (TIMES), Tulane University, New Orleans, LA, U.S. 70118
    Search for more papers by this author
  • J. Hinestroza

    1. Department of Chemical and Biomolecular Engineering and Tulane Institute for Macromolecular Engineering and Science (TIMES), Tulane University, New Orleans, LA, U.S. 70118
    Search for more papers by this author

Abstract

This review paper deals with mass transport in macromolecular materials. The study of mass transport through polymeric composite materials for example has applications in a variety of areas such as coatings, packaging and gas separations, to name just a few. Here we discuss several models for diffusion as well as several experimental techniques. In particular, we discuss models for case II diffusion, from a continuum mechanics point of view as well as via a mesoscopic theory. Variables such as temperature, molecular structure and mechanical deformation, affecting mass transport are also discussed.

Abstract

Cette revue porte sur le transport de matière dans les matériaux macromoléculaires. L'étude du transport de masse dans les matériaux composites polymériques par exemple a des applications dans divers domaines, comme l'enrobage, l'emballage et la séparation de gaz, pour en nommer quelques-uns. Nous examinons ici plusieurs modèles pour la diffusion ainsi que plusieurs techniques expérimentales. En particulier, nous examinons des modèles pour la diffusion de type II, du point de vue de la mécanique des milieux continus et à partir d'une théorie mésoscopique. Des variables influant sur le transport de masse, telles la température, la structure moléculaire et la déformation mécanique, sont également étudiées.

Get access to the full text of this article

Ancillary