title: Synthesis and swelling peculiarities of new hydrogels based on the macromolecular reaction of anhydride copolymers with γ-aminopropyltriethoxysilane.
abstract: This work describes the synthesis and macromolecular reactions of maleic anhydride (MA)-acrylamide (AAm) binary and MA-vinyl acetate (VA)- AAm ternary reactive copolymers with γ-aminopropyltriethoxysilane (APTS) as a polyfunctional crosslinker. Swelling parameters such as the start-time of the hydrogel-formation, initial rate of swelling, swelling rate constant, equilibrium swelling, and equilibrium water content (EWC) are determined for polymers/APTS/water systems with certain copolymer/crosslinker ratios (1.4/1 and 9/1). The formation of a hyperbranched network structure by the fragmentation of the side-chain reactive groups in the systems studied has also been confirmed by the Fourier Transform Infrared (FTIR) method.
authors.affiliation: a Department of Chemistry , Faculty of Science, Hacettepe University , Beytepe, Ankara , Turkey.|b Altinozu Vocational School of Agricultural Sciences, Mustafa Kemal University , Altinozu, Hatay , Turkey.
authors.forename: Mahir
authors.initials: M
authors.lastname: Timur
authors.affiliation: a Department of Chemistry , Faculty of Science, Hacettepe University , Beytepe, Ankara , Turkey.
authors.forename: Hatice Kaplan
authors.initials: HK
authors.lastname: Can
mesh_terms: D020106:Acrylamide / Q000737:chemistry*; D002087:Butyrates / Q000737:chemistry*; D020100:Hydrogels / Q000138:chemical synthesis / Q000737:chemistry; D008299:Maleic Anhydrides / Q000737:chemistry*; D011437:Propylamines / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry*
chemical_list: D002087:Butyrates; D020100:Hydrogels; D008299:Maleic Anhydrides; D011437:Propylamines; D012821:Silanes; D020106:Acrylamide; C479121:3-butenoic acid; C477625:amino-propyl-triethoxysilane
keywords: crosslinking; hydrogel; macromolecular reaction; poly(MA-alt-AAm); poly(VA-co-MA-co-AAm); swelling parameters; γ-aminopropyltriethoxysilane