Some investigations on the post radiation grafting of acrylamide onto polyethylene films

Hegazy, El‐Sayed A.; El-Dessouky, M. M.; Elsharabasy, Salwa A.

doi:10.1016/1359-0197(86)90073-1

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…On the other hand, at a higher concentration of AAc greater than 30 wt %, the concentration of free radicals increased, and this led to an increase in the formation of homopolymer, and consequently, the viscosity of the grafting mixture increased. This hindered the diffusion of the monomer onto the polymer backbone and decreased the rate of grafting yield As shown in Figure (C), it was clear that with increasing irradiation dose, the grafting yield reached the highest value for both HDPE and LDPE up to 20 kGy and then leveled off at doses greater than 20 kGy.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of reverse‐osmosis membranes for the desalination of underground water via the γ‐radiation grafting of acrylic acid onto polyethylene films

Oraby

Senna

Elsayed

et al. 2017

J of Applied Polymer Sci

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Research has been devoted to the desalination of saline water to fresh water suitable for human demands because of the shortage of water in some countries. Therefore, in this study, reverse-osmosis membranes were prepared via the g-radiation graft copolymerization of acrylic acid onto high-density and low-density polyethylene. The factors that could affect the grafting process, such as the solvent type, monomer and inhibitor concentration, and irradiation dose, were investigated to determine the optimum conditions for radiation grafting. The polyethylene grafted acrylic acid copolymers (PAAc-g-PE) graft copolymer was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and mechanical, rheological, and thermal property testing to illustrate the possibility of practical use in water desalination. The prepared grafted membranes showed significant results in the reverse-osmosis desalination method with underground saline water. The factors affecting the desalination of water, such as the water flux, operation time, and grafting percentage, were studied.

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Section: Resultsmentioning

confidence: 99%

Fabrication of reverse‐osmosis membranes for the desalination of underground water via the γ‐radiation grafting of acrylic acid onto polyethylene films

Oraby

Senna

Elsayed

et al. 2017

J of Applied Polymer Sci

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“…[40] The dose rate dependence in direct radiation grafting of acrylic acid onto PE films has also been found to be of the order of 0.8. It was found that the degree of grafting increases fast with the increase in radiation dose up to 15 kGy beyond which it tends to decrease up to an irradiation dose of 50 kGy.…”

Section: Development Of Membranes By Radiation Graftingmentioning

confidence: 96%

“…However, the pre-irradiation grafting of acrylamide into PE films has been found to show a 1.4 order of dependence. [40] At the same time, in the direct radiation grafting of acrylamide, the dependence of the grafting rate on monomer has been reported to be 1.9 which is much higher than the first order dependence in classical free radical polymerization. This deviation arises from the combination of different factors such as diffusion controlled polymerization and deactivation or termination of propagating chains with different components of the grafting medium.…”

Section: Influence Of Monomer Concentrationmentioning

confidence: 97%

Development of Membranes by Radiation‐Induced Graft Polymerization of Monomers onto Polyethylene Films

Gupta

Anjum

Jain

et al. 2004

Journal of Macromolecular Science, Part C: Polymer Reviews

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“…On the other hand, at higher concentration of AAc greater than 30 wt % many active free radicals are formed in AAc and the chance to combine with each other to form homopolymer increases, thus the viscosity of the grafting blend increased. This hindered diffusion of the monomer (AAc) towards the polymer backbone, which makes the rate of G % decreased [31,33]. Fig.…”

Section: Effect Of the Inhibitor Concentrationmentioning

confidence: 99%

Enhancement the properties of high and low-density polyethylene membranes by radiation grafting process

et al. 2019

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In this work, trials have been made to prepare different graft copolymers by direct irradiation grafting technique and evaluating their reverse osmosis properties. The acrylic acid monomer was grafted onto two improper polymers (low and high-density polyethylene) by means of gamma-ray as a motivator. The optimum conditions of preparation were using acetone as a solvent, monomer concentration 30% (wt/wt), using anhydrous ferric chloride as an inhibitor with optimum concentration 0.1% (wt/wt) and irradiation dose 20 KGy. Mechanical, rheological and thermal properties of the prepared membrane were also investigated. The prepared grafted membranes showed significant results in RO desalination method using underground saline water from Abo Swear, Ismailia, Egypt.

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Some investigations on the post radiation grafting of acrylamide onto polyethylene films

Cited by 8 publications

References 11 publications

Fabrication of reverse‐osmosis membranes for the desalination of underground water via the γ‐radiation grafting of acrylic acid onto polyethylene films

Fabrication of reverse‐osmosis membranes for the desalination of underground water via the γ‐radiation grafting of acrylic acid onto polyethylene films

Development of Membranes by Radiation‐Induced Graft Polymerization of Monomers onto Polyethylene Films

Enhancement the properties of high and low-density polyethylene membranes by radiation grafting process

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