Preparation of ion-exchange membranes by grafting acrylic acid into pre-irradiated polymer films—1. grafting into polyethylene

Abstract The grafting of acrylic acid on radiation peroxidized Teflon-FEP films exhibits features differing from those observed when grafting the monomer on polyethylene films. The differences result from both physical factors (diffusion of the monomer into the film) and chemical factors. Among the latter, one has to consider differences in the peroxidation mechanism which generates hydroperoxides by a chain reaction in polyethylene but only leads to trapped radicals in the perfluorinated polymer. A comparison of the results obtained in these studies helps to better understanding of the behaviour of these two polymers.

[1]  A. Chapiro,et al.  Greffage radiochimique de la N-vinylpyrrolidone dans des films de polytetrafluoroéthylène , 1986 .

[2]  E. Hegazy,et al.  The study on radiation grafting of acrylic acid onto fluorine‐containing polymers. III. Kinetic study of preirradiation grafting onto poly(tetrafluoroethylene–hexafluoropropylene) , 1982 .

[3]  Anna-Maria Jendrychowska-Bonamour,et al.  Relations entre la structure et les proprietes des membranes de polytetrafluoroethylene greffe—III. Membranes non-ionisables contenant de la poly-n-vinylpyrrolidone , 1980 .

[4]  R. Ceresa.  Block and Graft Copolymers , 1957, Nature.

[5]  Anna-Maria Jendrychowska-Bonamour,et al.  Relations entre la structure et les proprietes des membranes de polytetrafluoroethylene greffe—I. Membranes monogreffees carboxyliques ou basiques☆ , 1980 .

[6]  S. Machi,et al.  Graft polymerization of acrylic acid onto polyethylene film by preirradiation method. II. Effects of oxygen at irradiation, storage time after irradiation, mohr's salt, and ethylene dichloride , 1982 .

[7]  J. L. Garnett,et al.  Effect of acid on the radiation-induced grafting of monomers to polyolefins , 1974 .

[8]  Anna-Maria Jendrychowska-Bonamour,et al.  Relations entre la structure et les proprietes des membranes de polytetrafluoroethylene greffe—II. Membranes bifonctionnelles☆ , 1980 .

[9]  Adolphe Chapiro,et al.  Radiation Chemistry of Polymeric Systems , 1962 .

[10]  J. Silverman,et al.  The effect of acid on the radiation-induced grafting of styrene to polyethylene , 1979 .

[11]  S. Machi,et al.  Graft polymerization of acrylic acid onto polyethylene film by preirradiation method. I. Effects of preirradiation dose, monomer concentration, reaction temperature, and film thickness , 1982 .

[12]  J. L. Garnett,et al.  The role of inorganic salts in accelerating the radiation-induced grafting of styrene to cellulose and polyethylene , 1985 .

[13]  A. Chapiro.  Synthèse des copolymères greffés a partir des polymères ayant subi l'action des radiations ionisantes. I. Caractères généraux de la réaction de greffage sur le polyéthylène préirradié , 1958 .