Characterization of Network Structure of Polyacrylamide Based Hydrogels Prepared By Radiation Induced Polymerization
- State University of Tetovo, Faculty of Natural Science and Mathematics, 1200 Tetovo (Macedonia, The Former Yugoslav Republic of)
- Hacettepe University, Department of Chemistry, Polymer Chemistry Division, 06532, Beytepe, Ankara (Turkey)
- Institute of Physics, Faculty of Natural Science and Mathematics, University 'Ss Cyril and Methodius', Skopje (Macedonia, The Former Yugoslav Republic of)
In this study network structure of polyacrylamide based hydrogels prepared by radiation induced polymerization has been investigated. Polyacrylamide based hydrogels in the rod form were prepared by copolymerization of acrylamide(AAm) with hydroxyl ethyl methacrylate(HEMA) and methyl acrylamide(MAAm) in the presence of cross-linking agent and water by gamma rays at ambient temperature. Molecular weight between cross-links and effective cross-link density of hydrogels were calculated from swelling as well as shear modulus data obtained from compression tests. The results have shown that simple compression analyses can be used for the determination of effective cross-link density of hydrogels without any need to some polymer-solvent based parameters as in the case of swelling based determinations. Diffusion of water into hydrogels was examined by analyzing water absorption kinetics and the effect of network, structure on the diffusion type and coefficient was discussed.
- OSTI ID:
- 21057281
- Journal Information:
- AIP Conference Proceedings, Vol. 899, Issue 1; Conference: 6. international conference of the Balkan Physical Union, Istanbul (Turkey), 22-26 Aug 2006; Other Information: DOI: 10.1063/1.2733531; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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