Characterization and applications of PVF film grafted with binary mixture of methacrylic acid and 4-vinyl pyridine by gamma radiations: Effect of swift heavy ions

Surface modification of banana stem fibers via radiation induced grafting of poly(methacrylic acid) as an effective cation exchanger for Hg(ii)

“…Higher DT and percent residue in case of the graed BSF indicate an improvement in the thermal behavior upon graing of MAAc onto BSF. 26,27 Table S2 † shows the swelling percentages of ungraed and graed BSF. The graed BSF are BSF-b, BSF-MW and BSF-C which prepared at different irradiation dose, microwave power and concentration of KPS initiator, respectively.…”

Radiation-Induced Graft Copolymerization of Methacrylonitrile onto Poly (Tetrafluoroethylene-co-ethylene) Film by Discontinuous Method

“…Also, the effects of monomer contents of styrene, acrylonitrile and radiation doses on various parameters such as thermal stability, chemical structure and physical properties of the graft copolymers were investigated [14]. By using the pre-irradiation approach, a binary combination of 4-vinyl pyridine and methacrylic acid was grafted onto poly (vinyl fluoride) film and ionic bifunctional membranes were created [15,16]. Styrene and methacrylonitrile co-grafted membranes showed the best results among the tested radiation-grafted membranes [17].…”

Efficient Removal of Cr(VI) Ions by a Novel Magnetic 4-Vinyl Pyridine Grafted Ni3Si2O5(OH)4 Multiwalled Nanotube

“… 35 The one lone pair of electrons on the nitrogen atom of 4-vinylpyridine (4-VP) can either coordinate with heavy metal cations or be protonated to adsorb the oxygenated anions of the heavy metals. Grafting of 4-VP onto the polyethylene terephthalate fiber, 36 divinylbenzene copolymer, 37 and vinyltriethoxysilane-cellulose 38 has been found to enhance the removal of Cr(VI) and U(VI). As to the difficulty in the separation of those nano-adsorbents from the treated water, introducing magnetism to the adsorbents or substrates has been proved to facilitate the separation process.…”

“…The one lone pair of electrons on the nitrogen atom of 4-vinylpyridine (4-VP) can either coordinate with heavy metal cations or be protonated to adsorb the oxygenated anions of the heavy metals. Grafting of 4-VP onto the polyethylene terephthalate fiber, divinylbenzene copolymer, and vinyltriethoxysilane-cellulose has been found to enhance the removal of Cr­(VI) and U­(VI). As to the difficulty in the separation of those nano-adsorbents from the treated water, introducing magnetism to the adsorbents or substrates has been proved to facilitate the separation process. − Silicates, such as magnesium silicate, aluminum silicate, nickel silicate, and so forth, are promising adsorbent substrates due to large surface area and richness in surface hydroxyl groups. − Introducing nickel, a known ferromagnetic metal, to the Ni 3 Si 2 O 5 (OH) 4 NTs substrate by controlled reduction would endow the substrate with magnetism.…”