Swelling of ionic and non-ionic minigels

In this paper, non-ionic poly- N-isopropylacrylamide (PNIPAM) minigels and ionic imidazolium based minigels are synthesized to study the swelling after the addition of solvent. The kinetics of swelling is described using Tanaka's model and the diffusion coefficients are calculated. They are of...

Full description

Saved in:
Bibliographic Details
Published inColloids and surfaces. A, Physicochemical and engineering aspects Vol. 343; no. 1; pp. 30 - 33
Main Authors Suarez, Ivan J., Sierra-Martin, Benjamin, Fernandez-Barbero, Antonio
Format Journal Article Conference Proceeding
LanguageEnglish
Published Kidlington Elsevier B.V 10.07.2009
Elsevier
Subjects
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Imidazolium minigels
Poly- N-isopropylacrylamide
Surface physical chemistry
Water self-diffusion
Water self-diffusion
Poly- N-isopropylacrylamide
Imidazolium minigels
Water
Self diffusion
Poly-N-isopropylacrylamide
Swelling
Ions
Models
Kinetics
Diffusion coefficient
Nanotechnology
Online AccessGet full text

Cover

More Information
Summary:In this paper, non-ionic poly- N-isopropylacrylamide (PNIPAM) minigels and ionic imidazolium based minigels are synthesized to study the swelling after the addition of solvent. The kinetics of swelling is described using Tanaka's model and the diffusion coefficients are calculated. They are of the same order of magnitude of those reported for macro- and microgels and far from that of water self-diffusion. The presence of charge for ionic minigels allows swelling control through the ions present in the surrounding solvent.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2009.01.025