Preparation, characterization and biopotential using capacities of new biohybride hydrogels based acrylamide/polysaccaride containing clinoptilolite

In this study, acrylamide monomer and 2-acrylamido-2-methyl-1-propanesulfonic acid as a comonomer and in order to form a composite structure with guar gum as a naturel polymer and clinoptilolite as an inorganic mineral including such as aluminosilicate have been synthesized for the production of chemically crosslinked copolymers. Hydrogel systems were prepared by free radical polymerization in aqueous solution using ammonium persulfate/N,N,N',N'-tetramethylethylenediamine as redox initiating pair in presence of poly(ethylene glycol) diacrylate as crosslinker. Structural characterization of prepared chemically crosslinked polymers were tried to determine by using Fourier Transform Infrared Spectroscopy/Attenuated Total Reflectance (FT-IR/ATR). Scanning Electron Microscopy (SEM) micrographs were taken for determination of surface porosity of hydrogels. Dynamic swelling tests were applied at 25oC for the purpose of investigation of swelling properties of crosslinked copolymers. According to obtained data, parameters concerning swelling kinetics and diffusion mechanism were calculated. A cationic dye such as methyl violet was selected as model molecule to investigate of adsorption properties of hydrogels. It was determined that crosslinked copolymers adsorbed dye of methyl violet from aqueous solutions in high level. Key words: Acrylamide, biohybride, clinoptilolite, 2-acrylamido-2-methyl-1-propanesulfonic acid, guar gum, methyl violet, sorption.