Radiation graft copolymerization of butyl methacrylate and acrylamide onto low density polyethylene and polypropylene films, and its application in wastewater treatment

Ghaffar, A. M. Abdel; El‐Arnaouty, M. B.; Aboulfotouh, Maysara E.; Taher, N. H.; Taha, A.

doi:10.1080/10420150.2013.870175

Cited by 13 publications

(9 citation statements)

References 21 publications

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“…These results suggested that the degree of swelling depends mainly on the degree of grafting, amount of the hydrophilic groups in the PTFE-g-AAC film. Similar trend was reported by Abdel et al (2014).…”

Section: Results and Discussion Effect Of Irradiation Dose And Graftisupporting

confidence: 91%

Modification of PTFE Flat Sheet Film via Radiation Induced Grafting Polymerization with Acrylic Acid

Ghani¹,

Hamzah²,

Mohamed³

2020

JSM

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Polytetrafluoroethylene (PTFE) flat sheet film was modified with acrylic acid (AAC) by radiation induced grafting polymerization (RIGP) method using electron beam. The adsorbed doses were varied from 10 to 50 kGy, time of grafting from 1 to 3 h and monomer concentration and temperature were kept constant at 30 wt. % and 40ºC. The degree of grafting (D g) and equilibrium degree of swelling (EDS) of the grafted films were then determined. The films were further characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), atomic force microscope (AFM), X-ray diffraction (XRD), and optical water contact angle. D g within the range of 17% to 210% were obtained for doses from 10 to 50 kGy within time of grafting from 1 to 3 h. The grafted film (PTFE-g-AAC) showed increased hydrophilicity leading to an increase in EDS. The successful grafting process was confirmed by FTIR results that showed characteristics peaks for carbonyl and hydroxyl group and a decrease in crystallinity for the PTFE-g-AACfilm. SEM images showed that PTFE-g-AAC films had less fibrillar compared to PTFE film and was consistent with the decrease in roughness for the PTFE-g-AAC film. This study indicated that modifying PTFE film by grafting AAC could significantly improve the hydrophilicity of PTFE film. The PTFE-g-AAC films has potential as a heavy metal adsorbent as it can remove at least 75% of Fe ion and 50 % of Pb ion from competitive media.

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Section: Results and Discussion Effect Of Irradiation Dose And Graftisupporting

confidence: 91%

Modification of PTFE Flat Sheet Film via Radiation Induced Grafting Polymerization with Acrylic Acid

Ghani¹,

Hamzah²,

Mohamed³

2020

JSM

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“…In fact, their SEM images demonstrated that the sequential graftings of AA and dimethyl aminoethyl methacrylate on PP film were sparsely scattered granules . Similar morphological feature was also observed by Ghaffar et al . Granular structures were also found on the high‐density polyethylene film surface grafted in different solvents, and each granule was thought to be a single graft chain .…”

Section: Introductionsupporting

confidence: 70%

“…That grafting behavior was explained by precipitation grafting of acrylonitrile rich copolymers from solvent. The grafting yield of butyl methacrylate and acrylamide comonomers onto PP films increased with the amount of acrylamide increasing till a maximum value at the mass ratio of one, which was interpreted by high reactivity and polarity of acrylamide. Radiation grafting copolymerization of binary mixtures of AA and St onto PP films was investigated by El‐Salmawi et al .…”

Section: Introductionmentioning

confidence: 91%

Microstructure and sulfonation of dual monomer‐grafted polypropylene nonwoven fabrics

Tao

Pang

et al. 2019

J of Applied Polymer Sci

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The sulfonation of styrenic polymers often needs harsh reaction conditions, such as concentrated sulfuric acid and elevated temperature. The awkward situation is handled by grafting copolymerization of polar and nonpolar monomers, and essentially the surface wettability between sulfonating agent and matrix polymer is circumvented in the study. Two pairs of dual monomers, glycidyl methacrylate (GMA)-acrylic acid (AA), styrene (St)-acrylic acid (AA), were grafted onto polypropylene nonwoven fabrics (PP) using thermal polymerization, and the resulted fabrics were further sulfonated using sodium sulfite and sulfuric acid, respectively. The microstructure of the modified fabrics was characterized by infrared spectroscopy and scanning electron microscopy. The ion exchange property was verified by copper (II) removal from aqueous solution, and its reutilization was carried out in electrochemical desorption process. The results show that hydrophilic and active monomer AA speeds grafting and sulfonation, but overload of AA will deteriorate copolymerization of GMA, and switch copolymerization chain component due to acylation with benzene ring. Although interfacial compatilizer promotes dual grafting, its overdosing may intensify microphase segregation of the grafting polymers owing to emulsification. The resultant granular polymers will be drained off during functionalization and reutilization processes. The ion exchange fabrics can be applied for treatment of metal ion wastewaters with unique electrochemical desorption feature.

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“…DSC was used to investigate the effect of AAc grafting on the thermal properties of HDPE and LDPE . Figure and Table show the DSC thermograms of the ungrafted and grafted HDPE and LDPE and the obtained thermal parameters.…”

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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Radiation graft copolymerization of butyl methacrylate and acrylamide onto low density polyethylene and polypropylene films, and its application in wastewater treatment

Cited by 13 publications

References 21 publications

Modification of PTFE Flat Sheet Film via Radiation Induced Grafting Polymerization with Acrylic Acid

Modification of PTFE Flat Sheet Film via Radiation Induced Grafting Polymerization with Acrylic Acid

Microstructure and sulfonation of dual monomer‐grafted polypropylene nonwoven fabrics

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

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