Physicochemical study of radiation-grafted LDPE copolymer and its use in metal ions adsorption

El‐Sawy, Naeem M.; Hegazy, El‐Sayed A.; Ali, Amr El‐Hag; Motlab, M.S. Abdel; Awadallah‐F, Ahmed

doi:10.1016/j.nimb.2007.09.028

Cited by 22 publications

(16 citation statements)

References 21 publications

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“…It is not only affecting the electronic status of the pendant functional groups, for instance protonation/deprotonation of the basic groups or dissociation/association of acidic groups, but it may also alter the oxidation form of the metal ions present in the medium [2]. As expected, the higher the acidic condition, the lower was the adsorption of metal ions, this may be because of the protonation of the amino groups at the acidic conditions [1].…”

Section: Effect Of Ph On Adsorptionmentioning

confidence: 78%

“…2 g of AN/MA copolymer beads and 3 g of NH 2 OH·HCl were added to a reactor equipped with a magnetic stirrer and reflux con- densator, the mixture was stirred for 2 h. Then, about 5 mL of NaOH (1.3 g) aqueous solution was added to this mixture to neutralize HCl in NH 2 OH·HCl and the pH was kept at approximately 8. The reaction was performed for 20 h at 70 • C under stirring.…”

Section: Modification With Hydroxylamine Hydrochloridementioning

confidence: 99%

“…The adsorption mechanism for UO 2 2+ had been discussed in some reports [16,49,50] but little study had focus on the adsorption mechanism of other metal ions [2]. As amidoximes are supposed to be bidentate, two amidoximes may be used for chelate formation with a metal ion which makes a square planer chelate [51].…”

Section: Adsorption Mechanismmentioning

confidence: 99%

“…Therefore, many researches studied synthesis or modification of polymeric materials using different methods to overcome the difficulties facing the wastewater treatment process [2,3]. Among diverse approaches used to remove heavy metal ions such as ion exchange, reverse osmosis, precipitation, adsorption, and coagulation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis of porous acrylonitrile/methyl acrylate copolymer beads by suspended emulsion polymerization and their adsorption properties after amidoximation

Liu

Hou

Wang

et al. 2010

Journal of Hazardous Materials

104

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Section: Effect Of Ph On Adsorptionmentioning

confidence: 78%

Section: Modification With Hydroxylamine Hydrochloridementioning

confidence: 99%

Section: Adsorption Mechanismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of porous acrylonitrile/methyl acrylate copolymer beads by suspended emulsion polymerization and their adsorption properties after amidoximation

Liu

Hou

Wang

et al. 2010

Journal of Hazardous Materials

104

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“…Accordingly, there are a large number of synthetic and natural polymeric materials that are characterized by their functional groups suitable for dye decolorization processes [1,2]. Polyacrylonitrile (PAN) is characterized by its unique and well-known properties, so it is considered as one of the most important precursors for polymer fabrication materials.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Profile of Basic Dye onto Novel Fabricated Carboxylated Functionalized Co-Polymer Nanofibers

2016

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Acrylonitrile-Styrene co-polymer was prepared by solution polymerization and fabricated into nanofibers using the electrospinning technique. The nanofiber polarization was enhanced through its surface functionalization with carboxylic acid groups by simple chemical modification. The carboxylic groups' presence was dedicated using the FT-IR technique. SEM showed that the nanofiber attains a uniform and porous structure. The equilibrium and kinetic behaviors of basic violet 14 dye sorption onto the nanofibers were examined. Both Langmuir and Temkin models are capable of expressing the dye sorption process at equilibrium. The intraparticle diffusion and Boyd kinetic models specified that the intraparticle diffusion step was the main decolorization rate controlling the process.

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Pyrrolidone and Caprolactam Functionalized Natural and Synthetic Polymers

Brush¹,

Musa²

2021

Handbook of Pyrrolidone and Caprolactam Based Materials

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This chapter provides a sampling of diverse synthetic approaches to pyrrolidone‐ and caprolactam‐functionalized natural and synthetic polymers. Enhancing the property profiles of major industrial polymers is a common motivation for such research endeavors. A significant portion of synthetic polymers are obtained by conventional free radical polymerization of vinyl monomers. Free radical polymerization termination can occur by combination or disproportionation reactions. The class of N‐vinylpyrrolidone polymers is utilized in a wide range of industrial applications. The class of polyvinylcaprolactam polymers are temperature‐responsive materials that have proven useful in many application areas. Polysaccharides are high molecular weight polymeric carbohydrate molecules that consist of long chains of monosaccharide units. Natural biopolymers are available from renewable marine and agricultural resources. Cellulose, chitin, starch, glycogen, and galactomannans are a few examples of common natural polysaccharides. Traditional derivatization of polysaccharides of high industrial relevance, such as cellulose, involves etherification and esterification processes.

show abstract

Physicochemical study of radiation-grafted LDPE copolymer and its use in metal ions adsorption

Cited by 22 publications

References 21 publications

Synthesis of porous acrylonitrile/methyl acrylate copolymer beads by suspended emulsion polymerization and their adsorption properties after amidoximation

Synthesis of porous acrylonitrile/methyl acrylate copolymer beads by suspended emulsion polymerization and their adsorption properties after amidoximation

Adsorption Profile of Basic Dye onto Novel Fabricated Carboxylated Functionalized Co-Polymer Nanofibers

Pyrrolidone and Caprolactam Functionalized Natural and Synthetic Polymers

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