Commenced in January 2007
Paper Count: 31105
Synthesis and Analysis of Swelling and Controlled Release Behaviour of Anionic sIPN Acrylamide based Hydrogels
Abstract:In modern agriculture, polymeric hydrogels are known as a component able to hold an amount of water due to their 3-dimensional network structure and their tendency to absorb water in humid environments. In addition, these hydrogels are able to controllably release the fertilisers and pesticides loaded in them. Therefore, they deliver these materials to the plants' roots and help them with growing. These hydrogels also reduce the pollution of underground water sources by preventing the active components from leaching. In this study, sIPN acrylamide based hydrogels are synthesised by using acrylamide free radical, potassium acrylate, and linear polyvinyl alcohol. Ammonium nitrate is loaded in the hydrogel as the fertiliser. The effect of various amounts of monomers and linear polymer, measured in molar ratio, on the swelling rate, equilibrium swelling, and release of ammonium nitrate is studied.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1074491Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1849
 A. K. Bajpai, and A. Giri, Swelling dynamics of a macromolecular hydrophilic network and evaluation of its potential for controlled release of agrochemicals, Reactive & Functional Polymers 53 (2002) 125.
 T. Caykara, S. Kiper, and G. Demirel, Thermosensetive poly(Nisopropyleacrylamide- co-acrylamide) hydrogels: Synthesis, swelling and interaction with ionic surfactants, 42 (2006) 348.
 T. Caykara and A. lkay, Synthesis and network structure of ionic poly(N,N-dimethylacrylamide-co-acrylamide) hydrogels: Comparation of swelling degree with theory, 42 (2006) 1473.
 K. Kabiri, and M.J. Zohuriaan-Mehr, Superabsorbent Hydrogel Composites, Polym. Adv. Technol. 14(2003) 438.
 D. Liu, M. Sheu, C. Chen, Y. Yang, and H. Ho, Release characteristic of lidocaine from local implant of polyanionic and poly cationic hydrogels, Journal of Controlled Release 118 (2007) 333.
 A. S. Hoffman, Intelligent polymers in medicine and biotechnology, Macromol. Symp. 98 (1995) 645.
 Z. Li, Use of surfactant-modified zeolite as fertilizer carries to control nitrate release, Microprous and Meseporous Materials 61 (2003) 181- 188
 A.K. Bajpai, Anjali Giri, Swelling dynamics of a macromolecular hydrophilic network and evaluation of its potential for controlled release of agrochemicals, Reactive & Functional Polymers 53 (2002) 125-141
 A. Hekmat, A. B. Barati, M. Zendehdel, H. R. Norouzi, A. Afraz, Synthesis and Analysis of Swelling and Controlled Release Behaviour of Anionic sIPN Acrylamide Based Hydrogels, 12th National Chemical Engineering Congress, Tbriz, Iran, 2008