Anionic/Cationic Membranes Obtained by a Radiation Grafting Method for Use in Waste Water Treatment

Hegazy, El‐Sayed A.; El‐Rehim, Hassan A. Abd; Khalifa, N. A.; M, Atwa S; Shawky, Hosam

doi:10.1002/(sici)1097-0126(199708)43:4<321::aid-pi756>3.0.co;2-j

Cited by 46 publications

(24 citation statements)

References 3 publications

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“…Radiation grafting technique has been widely used to prepare adsorbents for removing the heavy metal ions from effluents in the past several decades [7,[16][17][18][19] were prepared by choosing different functional monomers and matrix materials freely. What's more, the adsorbents with different grafting yield (GY) can be easily prepared by controlling the irradiation conditions.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Cr(VI) using silica-based adsorbent prepared by radiation-induced grafting

Qiu

Wang

et al. 2009

Journal of Hazardous Materials

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Section: Introductionmentioning

confidence: 99%

Adsorption of Cr(VI) using silica-based adsorbent prepared by radiation-induced grafting

Qiu

Wang

et al. 2009

Journal of Hazardous Materials

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“…Figure 1 shows the effect of NVP concentration on the degree of grafting onto both LDPE and PP at irradiation dose 20 KGY. This may be attributed to the high amorphous structure of LDPE than the more crystalline structure of PP [19] . However, the degree of grafting increases more in LDPE.…”

Section: Effect Of Monomer Concentrationmentioning

confidence: 99%

Functionalization of LDPE and PP to Produce Grafted Membranes Used in Dialysis Processes. Part II

Maziad¹,

Mahmoud²,

Hassan³

et al. 2005

Polymer-Plastics Technology and Engineering

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Gamma radiation-induced grafting of N-vinyl pyrrolidone (NVP) monomers onto low-density polyethylene (LDPE) and polypropylene (PP) films was studied. The effect of monomer concentration, irradiation dose, and inhibitor concentration on the grafting percent was determined. The swelling behavior of the grafted membranes has been investigated, and it was shown that the modification of LDPE and PP films with hydrophilic monomers results in the growth of the water uptake percent. The permeability of high molecular weight materials such as creatinine and urea, through NVP-grafted membranes increased with increase in grafting percent. Thermal properties of the grafted membranes were studied by using thermo gravimetric analysis (TGA). The morphology of grafted membranes was investigated by using X-ray diffraction (XRD) and the scanning electron microscope (SEM). Structures of the grafted membranes were elucidated by spectroscopic analysis as FTIR, and their mechanical properties were also investigated.

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“…Hegazy et al (1997) investigated the properties of a cationic/anionic (poly(AAc/4-VP)grafted) PE membrane as well as a cationic (poly(AAc)-grafted) membrane. Hegazy et al (1997) investigated the properties of a cationic/anionic (poly(AAc/4-VP)grafted) PE membrane as well as a cationic (poly(AAc)-grafted) membrane.…”

Section: Metal Adsorptionmentioning

confidence: 99%

Surface Modification by Graft Polymerization

2009

Advanced Topics in Science and Technology in China

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Membrane technologies have now been widely exploited and utilized on a large scale due to the unique separation principles of membranes. For further progress, however, membranes with favorable properties and functionabilities must be designed and prepared. Based on existing membrane materials, modification of them is necessary. Among different technologies, graft polymerization is a universal modification method for preparing a "tailored" membrane surface with desired functions. The grafted polymer chains on the membrane surface play an important role in membrane applications. In this chapter methods of graft polymerization on the membrane surfaces and the relative applications are introduced.

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Anionic/Cationic Membranes Obtained by a Radiation Grafting Method for Use in Waste Water Treatment

Cited by 46 publications

References 3 publications

Adsorption of Cr(VI) using silica-based adsorbent prepared by radiation-induced grafting

Adsorption of Cr(VI) using silica-based adsorbent prepared by radiation-induced grafting

Functionalization of LDPE and PP to Produce Grafted Membranes Used in Dialysis Processes. Part II

Surface Modification by Graft Polymerization

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