Perfluorinated anion exchange membranes: Preparation and preliminary tests of dialysis

Abstract

Using the preirradiation technique a kinetic study of the grafting of the 4‐vinyl pyridine (V4P) and an aliphatic ammonium monomer (ALAM) onto the copolymer film of ethylene–tetrafluoroethylene (ETFE) has been performed. The influence of dose, temperature, and concentration of monomer, reticular agent, and inhibitor were investigated. The results are discussed on the basis of the interactions between monomer diffusibility and viscosity of the medium. The characteristics of some membranes were determined. Their applicability to the recovery of acid by dialysis is demonstrated.

A review of radiation-grafted polymer electrolyte membranes for alkaline polymer electrolyte membrane fuel cells

“…Elmidaoui et al [146] used hydrogenated olefins with an aliphatic ammonium monomer and grafted this onto ETFE. Roualdes et al [147] grafted aminosiloxane groups onto a PVDF backbone polymer using a low-frequency plasma deposition process in a tetramethylsilane/ammoniac mixture.…”

Ion exchange membranes: State of their development and perspective

“…Anion exchange functional groups can be either strongly basic, such as tertiary ammonium or weakly basic, such as primary, secondary or tertiary amine groups. Anion exchange membranes prepared by grafting of 4-vinylpyridine onto films, such as PTFE [64,65], PE [65,66], PP [67,68], ETFE [69], PVDF [70,71], penton [72] and polyvinyl chloride (PVC) [73] followed by quaternization with alkyl halide have been reported in literature.…”

Parametric investigations on proton conducting membrane by radiation induced grafting of 4-vinylpyridine onto poly(vinylidene fluoride) and phosphoric acid doping

“…The grafted films were doped with PA using the procedure reported by Li et al [22]. The grafted films were immersed Brought to you by | University of Iowa Libraries Authenticated Download Date | 6/1/15 12:38 PM in aqueous solutions of PA of various concentrations (40-85%) for different periods of time at room temperature.…”

“…Thus, 4-VP was grafted onto var- ious polymer films to prepare functional membranes by RIG in many occasions [9][10][11][17][18][19][20][21][22][23][24]. Table 1 shows a summary of previous studies involving RIG of 4-VP onto various polymer films.…”