Journal ArticleDOI
Swelling of ionic and neutral polymer networks in ionic solutions
TLDR
In this paper, the dynamic swelling of polymer networks in ionic solution was modelled with a Hamiltonian equation of motion which was transformed into an equation describing the system displacement vector as a function of time.About:
This article is published in Journal of Membrane Science.The article was published on 1993-03-25. It has received 31 citations till now. The article focuses on the topics: Ionic strength & Swelling.read more
Citations
More filters
Journal ArticleDOI
Hydrogels in controlled release formulations: network design and mathematical modeling
Chien-Chi Lin,Andrew T. Metters +1 more
TL;DR: The objective of this article is to review the fundamentals and recent advances in hydrogel network design as well as mathematical modeling approaches related to controlled molecule release from hydrogels.
Journal ArticleDOI
Swelling/deswelling of anionic copolymer gels
Atul R. Khare,Nicholas A. Peppas +1 more
TL;DR: The dynamic and equilibrium swelling properties of dry glassy poly(2-hydroxyethyl methacrylate-co-methacrylic acid) and polymeric networks were studied as a function of pH, ionic strength, nature of the counterion and buffer composition.
Journal ArticleDOI
Mathematical models in drug delivery: how modeling has shaped the way we design new drug delivery systems.
TL;DR: In this review, some of the seminal contributions that have established the mathematical foundations of controlled drug delivery and led to the modern models are presented.
Journal ArticleDOI
Drug diffusion and binding in ionizable interpenetrating networks from poly(vinyl alcohol) and poly(acrylic acid)
TL;DR: It was concluded that drug diffusion may be impeded by associated drug binding, especially in IPN hydrogels containing high amounts of PAA.
Journal ArticleDOI
pH-sensitive membranes from poly(vinyl alcohol)/poly(acrylic acid) interpenetrating networks
TL;DR: In this paper, the authors used an interpenetrating networks of poly(vinyl alcohol) and poly(acrylic acid) with varying degree of crosslinking and ionic content to determine the average molecular weight between crosslinks, crosslink density and mesh size.
References
More filters
Journal ArticleDOI
Kinetics of swelling of gels
TL;DR: In this article, a theory of the kinetics of the swelling of polyacrylamide gels is presented, which is based on the assumption that the swelling time is determined by the diffusion coefficient of the fluid molecules.
Journal ArticleDOI
Spectrum of light scattered from a viscoelastic gel
TL;DR: In this paper, the spectrum of light scattered from thermally excited displacement fluctuations in polyacrylamide gels was measured using optical mixing spectroscopy, and the correlation function for the displacements having wave vector q is predicted for these gels to have the form of an exponential decay: exp(− Γt).
Journal ArticleDOI
The electrostatic free energy of polyelectrolyte solutions. II. Fully stretched macromolecules
Shneior Lifson,A. Katchalsky +1 more
TL;DR: In this article, a series of graphs are presented for the numerical evaluation of the internal and free energies of salt-free polyelectrolyte solutions as a function of concentration, degree of ionization, and temperature.
Journal ArticleDOI
Kinetics of electrically and chemically induced swelling in polyelectrolyte gels
TL;DR: In this paper, a macroscopic continuum model is presented to predict the kinetics of swelling in polyelectrolyte gel membranes induced by augmentation of electrostatic swelling forces arising from membrane fixed charge groups.
Journal ArticleDOI
pH-Dependent Swelling and Solute Diffusion Characteristics of Poly(Hydroxyethyl Methacrylate–CO–Methacrylie Acid) Hydrogels
TL;DR: The nonionized gel structure was found to be rather insensitive to the amount of cross-linker, tetraethylene glycol dimethacrylate (TEGDMA), incorporated, within the range of 0.5 to 3%.