Crosslinked grafted PVC obtained by direct radiation grafting

Hegazy, El‐Sayed A.; Dessouki, A.M.; El-Dessouky, M. M.; El‐Sawy, Naeem M.

doi:10.1016/0146-5724(85)90178-5

Cited by 30 publications

(16 citation statements)

References 16 publications

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“…PAAc metal complex of Rh 3/ ions increases with an increase in the metal ion concentration in the grafted poly(acrylic acid) chains, 4,5,9 as shown in Figure 2. Figure 3 shows the intensity (cps) as a function of energy (keV) for PFA-g-PAAc-Rh complex films.…”

Section: Xrd Investigationmentioning

confidence: 82%

“…Thus, the comconducting materials. 14 Moreover, the electrical conductivity of polymeric substrates depends plexed Rh 3/ ions do not result in either formation of a crystalline structure 5 or a change to the trunk mainly on the presence of the high density of free ions with high mobility and the existence of lowpolymer structure. 4,7 These results indicate that neither the trunk molecular-mass impurities in the film.…”

Section: Xrd Investigationmentioning

confidence: 99%

“…7 The conductivity of thermal and chemical stability of the complex the polymer-metal have been investigated. 4,5,8 bonds and structure. The thermal stability of grafted polyacrylic acid on some fluoropolymers has been examined.…”

mentioning

confidence: 99%

“…The graft copolymer -metal mer ligand to metal ions or metal complexes are complex was investigated by ultraviolet ( UV ) , studied mainly by spectrophotometry. [4][5][6] Poly-XRD, X-ray fluorescence ( XRF ) and thermomer-metal complexes have also been studied by gravimetric analysis ( TGA ) in order to probe the X-ray diffractometry (XRD). 7 The conductivity of thermal and chemical stability of the complex the polymer-metal have been investigated.…”

mentioning

confidence: 99%

“…polymers containing functional groups such as Therefore, the grafted poly ( tetrafluoroethypoly(vinyl alcohol), polyamide, and poly(acrylic lene -perfluorovinyl ether ) with acrylic acid, acid). [3][4][5] Polymer-metal complex represents a re-PFA-g-PAAc, copolymer was prepared and used markably specific structure in which the central as ligand for Rh 3/ ions in solutions. The commetal ions are surrounded by an enormous polyplexation route was examined by pH-metery as mer chain.…”

mentioning

confidence: 99%

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Complexation of rhodium on radiation-grafted acrylic acid onto poly(tetrafluoroethylene-perfluorovinyl ether) copolymer films

El‐Sawy

1998

J. Appl. Polym. Sci.

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Radiation-induced graft polymerization of acrylic acid onto poly(tetrafluoroethylene-perfluorovinyl ether ) copolymer films has been prepared using g-irradiation by the mutual method. The grafted copolymer rapidly complexes with rhodium ions through the carboxylic groups. The complexation process was followed by measuring the variation of the pH of aqueous RhCl 3 solution of several concentrations as a function of time. Spectroscopic, electrical, optical, thermal, and diffraction measurements have been investigated. The results revealed the high stability of the ligand-metal complex formed. Thus, a practical application of the grafted copolymer in the field of rare metal waste treatment is implied.

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Section: Xrd Investigationmentioning

confidence: 82%

Section: Xrd Investigationmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Complexation of rhodium on radiation-grafted acrylic acid onto poly(tetrafluoroethylene-perfluorovinyl ether) copolymer films

El‐Sawy

1998

J. Appl. Polym. Sci.

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Grafting of vinyl acetate onto poly(vinyl chloride) in solution

Vigo

Uliana

1988

J of Applied Polymer Sci

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SynopsisRadiation-induced grafting of vinyl acetate (VAc) onto poly(viny1 chloride) (PVC) was performed in solution with dimethylformamide (DMF). Grafting was studied as a function of dose, dose rate, and VAc/PVC ratio. The amount of grafting was measured by IR spectroscopy on the graft copolymer fraction insoluble in hot methanol. The homopolymerization of VAc was also studied in the same conditions, in order to check the influence of the solvent on radiochemical reactions leading to graft copolymers. The results show that the grafting can be easily obtained and the graft copolymer will be tested for the preparation of ultrafiltration membranes.

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Preparation and properties of cationic membranes obtained by radiation grafting of methacrylic acid onto PTFE films

Hegazy

Taher

Kamal

1989

J of Applied Polymer Sci

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SynopsisCationic membranes were prepared by direct radiation grafting of methacrylic acid (MAA) onto poly(tetrafluoroethy1ene) (PTFE) f i l m s followed by alkaline treatment to confer ionic character in the graft copolymer. The complete inhibition of homopolymerization of MAA by using ammonium feqeous sulfate (Mohr's salt) failed. However, the addition of 0.5 w t ' % FeC1, to the monomer solution effectively inhibited the homopolymerization process and higher grafting yield was obtained. I t was found that the graft polymerization proceeded successfully in presence of methanol/water mixture (30/70 w t %), and much higher degrees of grafting were obtained as compared with those in the presence of other diluents used here. The influence of irradiation atmosphere (air, N, gas, and vacuum) on the grafting process was investigated. The dependence of the grafting rate on MAA concentration was found to be of orders 2.9 and 0.72 in the presence of 0.5 wt % Mohr's salt or 0.5 wt 5 % FeCl,, respectively. This grafting system proceeds by the front mechanism. Investigation of mechanical properties, electrical conductivity, and swelling behavior of the grafted films revealed that such a copolymer could be acceptable in practical use as a cation-exchange membrane.

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Crosslinked grafted PVC obtained by direct radiation grafting

Cited by 30 publications

References 16 publications

Complexation of rhodium on radiation-grafted acrylic acid onto poly(tetrafluoroethylene-perfluorovinyl ether) copolymer films

Complexation of rhodium on radiation-grafted acrylic acid onto poly(tetrafluoroethylene-perfluorovinyl ether) copolymer films

Grafting of vinyl acetate onto poly(vinyl chloride) in solution

Preparation and properties of cationic membranes obtained by radiation grafting of methacrylic acid onto PTFE films

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