Synthetic polyelectrolytes of varying charge densities but similar molar mass based on acrylamide and their applications on palm oil mill effluent treatment

Ariffin, A.; Shatat, Raid Saleh; Norulaini, A.R. Nik; Omar, A.K. Mohd

doi:10.1016/j.desal.2004.02.107

Cited by 48 publications

(45 citation statements)

References 2 publications

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“…Research of polyacrylamide and its copolymers is one of the most popular hot aspects because the reasonable cost, easy polymerization and good-treatment result. Different kinds of derivates of poly-acrylamide have been prepared in order to treat different kinds of wastewater, and improved flocculation performances were demonstrated [1][2][3][4]. In the past few decades, researchers have found hydrophobically modified polymers showed excellent properties in the oily wastewater treatment in oil recovery operations and were effective in cleaning up organic contaminants in wastewater.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrophobic group on flocculation properties and dewatering efficiency of cationic acrylamide copolymers

Ren

Chen

Zheng

et al. 2007

Reactive and Functional Polymers

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Three kinds of hydrophobically modified copolymers of acrylamide with 3-acrylamido-2-hydroxypropyltrialkylammonium chloride were prepared, in which alkyls were ethyl, butyl and octyl, respectively. The conformations of the hydrophobically modified copolymers were studied using TEM micrograph. The flocculation performances and the dewatering efficiencies were investigated. The results showed that the hydrophobic group could enhance the flocculation properties. The longer the hydrophobic alkyl chain was, the better the flocculation result was. Compared with poly-diallyldimethyl ammonium chloride (PDADMAC) and poly-acrylamide (PAM), the hydrophobically modified polymers showed better performances in turbidity removal and were quite more efficient in dewatering examination.

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Section: Introductionmentioning

confidence: 99%

Effect of hydrophobic group on flocculation properties and dewatering efficiency of cationic acrylamide copolymers

Ren

Chen

Zheng

et al. 2007

Reactive and Functional Polymers

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“…This phenomenon could be explained based on charge density principle [21]. Furthermore, the charge density of the SSC increased when SSC adsorption increased [22]. This implies rapid destabilization of the particles.…”

Section: Variation Of Ssc Removal Efficiency E(%) As a Function Of Tmentioning

confidence: 99%

Kinetics and coagulation performance of snail shell biomass in pharmaceutical Effluent.

Ugonabo¹,

Menkiti²,

Onukwuli³

2012

IOSRJEN

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“…They are used in papermaking and treating wastewater. There is a greater variety of molecular structures in the cationic family than any of the other polyelectrolytes [1,2]. Synthetic cationic polyelectrolytes are polymers produced from raw materials of fossil fuels, by incorporation of cationic charges along the length of the chain that makes the polymer to be hydrophilic [3].…”

Section: Introductionmentioning

confidence: 99%

Using free radical polymerization and Mannich reaction, synthesis and characterization of cationic polyacrylamides having similar molecular weight but different charge densities

Shatat

Niazi

2018

Eur J Chem

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Using free radical solution polymerization technique and Mannich reaction, five different polyacrylamides with similar molecular weight but variable charge densities were synthesized. High molecular weight polyacrylamides were synthesized using potassium persulfate and N,N,N',N'-tetramethylethylenediamine system as initiators. This was achieved by increasing the concentration of acrylamide monomer. They were then characterized by infrared spectroscopy, viscosity measurements and glass transition temperature measurement. These compounds with various cationic charge densities from 48.2, 161.7, 355, 425 and 485 C/g were prepared through Mannich reaction. The results indicate, by increasing the acidity of the polyacrylamide solution using sulfuric acid, the pH of the polyacrylamide solution decreases correspondingly. As a result, the positive charges increased resulting in the enrichment of charge densities.

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Synthetic polyelectrolytes of varying charge densities but similar molar mass based on acrylamide and their applications on palm oil mill effluent treatment

Cited by 48 publications

References 2 publications

Effect of hydrophobic group on flocculation properties and dewatering efficiency of cationic acrylamide copolymers

Effect of hydrophobic group on flocculation properties and dewatering efficiency of cationic acrylamide copolymers

Kinetics and coagulation performance of snail shell biomass in pharmaceutical Effluent.

Using free radical polymerization and Mannich reaction, synthesis and characterization of cationic polyacrylamides having similar molecular weight but different charge densities

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