Journal ArticleDOI
Sorption and transport in glassy polymers–a review
TLDR
In this paper, the authors define Fickian diffusion in rubbery polymers and present a review and classification of various theoretical models which have been proposed to account for these phenomena.Abstract:
After defining Fickian diffusion in rubbery polymers an overview of transport behavior in polymers is presented. Diffusion and sorption below the glass transition are discussed, followed by a review and classification of the various theoretical models which have been proposed to account for these phenomena. A short list of recommendations for future work is included.read more
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Modeling of drug release from delivery systems based on hydroxypropyl methylcellulose (HPMC).
TL;DR: The present article is a comprehensive review of the current state of the art of mathematical modeling drug release from HPMC-based delivery systems and discusses the crucial points of the most important theories.
Journal ArticleDOI
Mathematical modeling of drug delivery.
TL;DR: An overview on the current state of the art of mathematical modeling of drug delivery, including empirical/semi-empirical and mechanistic realistic models is given, Analytical as well as numerical solutions are described and various practical examples are given.
Journal ArticleDOI
Polymers for gas separations: the next decade
TL;DR: A recent review examines the progress made in the understanding of these relationships, with emphasis on selected rubbery and glassy polymers as mentioned in this paper, and the potential usefulness of computer simulation techniques for predicting polymer structures that enhance penetrant gas mobility and selectivity.
Journal ArticleDOI
Models of the glass transition
TL;DR: A general survey of glass transition phenomena and concepts is presented in an introductory section as discussed by the authors, and the physical significance of computer simulations of glass transitions in simple liquids and the question of a hidden phase transition underlying an observed glass transition are examined critically.
Journal ArticleDOI
Transport phenomena through polymeric systems
Soney C. George,Sabu Thomas +1 more
TL;DR: A detailed review of current research in the field of transport phenomena and membrane assisted transport processes is provided in this paper, where the relationships between membrane characteristics, polymer structure and separation efficacy are treated in detail.
References
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Book
Viscoelastic properties of polymers
TL;DR: In this article, the authors describe the nature of Viscoelastic behavior of polymeric systems and approximate relations among the linear Viscoels and approximate interrelations among the Viscelastic Functions.
Journal ArticleDOI
Effect of partially immobilizing sorption on permeability and the diffusion time lag
Donald R Paul,William J. Koros +1 more
TL;DR: In this article, the authors extended the dual-sorption theory to accommodate different degrees of partial immobilization of gas sorbed by the Langmuir mode using two different formulations.