Strength and salt/pH dependent-sorption capacity modulation of N-(alkyl)acrylamide-based semi-IPN hybrid gels reinforced with silica nanoparticles

Anionically modified N-(alkyl)acrylamide-based semi-IPN hybrid gels reinforced with SiO2 for enhanced on–off switching and responsive properties

“…Anionically modified hybrid PNIPA gels in the form of semi-IPN containing varying amounts of SiO 2 particles (SiP) and a constant amount of linear polymer were prepared using the model system proposed in the previous study. 14 NIPA was chosen as the reactive component due to specific hydrophilic–hydrophobic functional groups; amide –NHCO and isopropyl groups –CH(CH 3 ) 2 providing temperature sensitivity to the hybrid structure. Methacrylic acid (MA), which is included in the structure as an anionic comonomer, was selected to impart pH sensitivity to the hybrid network via its carboxylic acid group.…”

Anionic starch-based hybrid cryogel-embedded ZnO nanoparticles: tuning the elasticity and pH-functionality of biocomposites with dicarboxylic acid units

“…The equilibrium swelling degree φ V was determined in ref. 12 and 13:where D 0 and D are the measured diameters of the samples after the preparation and equilibrium swelling, respectively. m ap and m d are the masses of semi-IPN samples of the as-prepared state and after the drying procedure, ρ is the density of the copolymer PAI gel as 1.35 g mL −1 , 14,15 and d w is the density of the polymerization solvent, water as 1.0 g mL −1 .…”

Interpenetrating polymer networks for desalination and water remediation: a comprehensive review of research trends and prospects

“…The material was found to remove nearly 75% of methyl violet (MV) dye. 119 Novel cellulose acetate/acrylic acid-glutaraldehyde semi-IPNs were synthesized by Rana and his team and the designed materials were meant for targeting the removal of MB dye from wastewater. The synthesized systems were found to remove >90% of MB dye within short intervals of contact time.…”