Synthesis and investigation of swelling behavior of new agar based superabsorbent hydrogel as a candidate for agrochemical delivery |
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Authors: | Ali Pourjavadi Bahareh Farhadpour Farzad Seidi |
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Affiliation: | (1) Polymer Research Laboratory, Department of Chemistry, Sharif University of Technology, P.O. Box 11365-9516, Tehran, Iran |
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Abstract: | In this investigation a new type of superabsorbent hydrogel based on agar was prepared, and the effect of the feed ratio of
some components (acrylic acid, MBA, APS and agar) on the swelling capacity of the hydrogel was systematically studied. Maximum
water absorbency of the optimized final product was found to be 1,100 g/g in distilled water. The structure of the hydrogel was characterized by FT-IR method and morphology of the samples was examined
by scanning electron microscopy (SEM). Swelling properties of optimized hydrogel sample in different swelling mediums were
investigated. The optimum hydrogel were also loaded with potassium nitrate and its potential for controlled release of potassium
was investigated by measuring conductivity in various conditions. |
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