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Preparation and properties of two‐component hydrogels based on 2‐acrylamido‐2‐methylpropane sulphonic acid
Author(s) -
AbdelAzim AbdelAzim A.,
Farahat Medhat S.,
Atta Aiman M.,
AbdelFattah Atef A.
Publication year - 1998
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(199805)9:5<282::aid-pat755>3.0.co;2-n
Subject(s) - copolymer , monomer , acrylic acid , polymerization , materials science , polymer chemistry , self healing hydrogels , reactivity (psychology) , molar ratio , polymer , fourier transform infrared spectroscopy , chemical engineering , swelling , acrylamide , trimethylolpropane , catalysis , organic chemistry , chemistry , composite material , medicine , alternative medicine , pathology , engineering , polyurethane
Xerogels comprising 2‐acrylamido‐2‐methylpropane sulphonic acid (AMPS) and acrylic acid as well as AMPS and acrylamide crosslinked with hexafunctional crosslinking agent have been prepared by catalytic initiation polymerization to complete conversion. Different percentages of hexafunctional crosslinker, 1,1,1‐trimethylolpropane trimethacrylate, were used to prepare crosslinked copolymers having different degree of crosslink densities. The crosslinked copolymers were swollen in water to equilibrium. The volume fraction of polymer, the swelling capacity and the equilibrium water content were obtained. Low conversion polymerization was used to determine the reactivity ratios of both monomer pairs. Fourier transform spectroscopy was utilized to measure the molar ratio of copolymers constituents. © 1998 John Wiley & Sons, Ltd.