Synthesis, characterization and application of novel polyacrylamide‐grafted barley

Sen, Gautam; Mishra, Sumit; Dey, Kartick Prasad; Bharti, Srijita

doi:10.1002/app.41046

Cited by 23 publications

(11 citation statements)

References 32 publications

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“…PAM has the special physical and chemical properties, such as good flocculation property, surface activity, and thickening performance, which result in its broad applications including wastewater treatment, papermaking, mining, and so on [19][20][21]. PAM had been prepared by SI-ATRP [22][23][24], while its preparation by SI-eATRP has not been reported so far, to our knowledge.…”

Section: Introductionmentioning

confidence: 90%

Preparation of polyacrylamide via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP) for Pb2+ sensing

Sun

Deng

et al. 2015

J Solid State Electrochem

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Acrylamide polymer brushes (PAM) were prepared on the surface of Au electrode for Pb 2+ ion sensing via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP). The electrode modified with PAM (PAM/Au) was carefully examined by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), polarization modulation infrared reflection-absorption spectroscopy (PM-IRRAS), and scanning electron microscope (SEM). Further, the PAM/Au electrode was successfully used for the determination of Pb 2+ ion by differential pulse anodic stripping voltammetry (DPASV). Under the optimal conditions, the PAM/Au electrode showed a linear correlation for Pb 2+ concentrations in the range of 3.0×10 −3 to 2.0×10 3 μg/L. The limit of detection (S/N = 3.3) was estimated to be 3.7× 10 −4 μg/L. Finally, polymer brush electrodes were applied to analyze Pb 2+ ion in an effluent. The results of the experiment indicated that PAM/Au electrode has good accuracy and potential application in practical sample analysis. In a word, the work of this paper established a useful way for the synthesis and application of polymer brush.

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Section: Introductionmentioning

confidence: 90%

Preparation of polyacrylamide via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP) for Pb2+ sensing

Sun

Deng

et al. 2015

J Solid State Electrochem

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“…The removal of occluded PAM because of competing homopolymer formation reaction was carried out with extraction using acetone for 24 h. [29][30][31] The proposed mechanism for the microwave-assisted technique is represented in Scheme 1a.…”

Section: Microwave-assisted Synthesis Of Polyacrylamide Grafted Oatmementioning

confidence: 99%

Comparative Studies on the High Performance Flocculating Agent of Novel Polyacrylamide grafted Oatmeal

2015

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Polyacrylamide grafted oatmeal was synthesized via two techniques, namely microwave assisted using ceric ammonium nitrate along with microwave irradiation and microwave initiated using microwave irradiation alone. The synthesized graft copolymers via both methods were characterized by a number of physicochemical techniques including viscometry, elemental analysis, Fourier Transform Infrared Spectroscopy (FTIR), SEM, TGA, UV DSC and Carbon 13-cross polarization/magic angle spinning solid-state NMR Spectroscopy ( 13 C-CP/MAS SSNMR Spectroscopy) using a parent biopolymer (oatmeal) as reference. Furthermore, flocculation efficiency of synthesized graft copolymers was studied in 0.25 wt% kaolin suspension and in wastewater for attenuation of pollutant load. The studies report the superiority of OAT-g-PAMs synthesized by the microwave-assisted technique than microwave-initiated technique in terms of their higher percentage grafting, intrinsic viscosity, flocculation efficiency and pollution load reduction. The synthesized graft copolymers were compared with PAM and alum for assessing their flocculation behavior in 0.25 wt% kaolin suspension and the results obtained were found encouraging for the treatment of effluents discharged from various industries. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2016, , 21540; View this article online at wileyonlinelibrary.com.

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“…Methacrylic acid (MAA) and acrylamide (AM) have been used as monomers for synthesis of amylopectin‐grafted block copolymer. Polyacrylamide (PAM) and polymethacrylic acid (PMAA) are popular polymeric flocculants for wastewater treatment . Further, upgradation of graft copolymers into responsive copolymers has been done through incorporation of IONPs via condensation reaction.…”

Section: Introductionmentioning

confidence: 99%

“…27 The main objective of this work is to quickly remove kaolin and dissolved methylene blue (MB) dye (MB dye is, derivative of phenothiazine, dark green powder chemical that yields a blue solution in water) from wastewater, under the influence of magnetic field (horseshoe magnet are popular polymeric flocculants for wastewater treatment. [28][29][30] Further, upgradation of graft copolymers into responsive copolymers has been done through incorporation of IONPs via condensation reaction. PMAA consists of reactive carboxylic functional groups, which stabilize the shape and size of MNPs, provide strong amide linkage between the MNPs and polymer, and also control the magnetic properties, making it very attractive for applications.…”

mentioning

confidence: 99%

Synthesis of IONP's decorated graft copolymers and study of their magnetic force–induced wastewater treatment

Kiran

Sonker

Tungala

et al. 2019

Polymers for Advanced Techs

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Our work is focused on facile synthesis and modification of amylopectin‐grafted block copolymers by using reversible addition−fragmentation chain transfer (RAFT) polymerization technique. This technique yields polymers with controlled molecular weight and low polydispersity indexes and is feasible with a wide range of monomers. Five different grades of amylopectin‐grafted polymethacrylic acid and polyacrylamide block copolymers have been synthesized via RAFT, by varying the amount of acrylamide employing amylopectin‐based macro chain transfer agent. Graft copolymers have been upgraded as smart responsive graft copolymers, through the incorporation of iron oxide nanoparticles (IONPs) via condensation reaction. The polymeric materials have been extensively characterized by energy‐dispersive X‐ray analysis, Fourier transform infrared spectroscopy, proton magnetic resonance spectroscopy, scanning electron microscopy, ultraviolet‐visible spectroscopy, gel permeation chromatography, transmission electron microscopy, thermogravimetric analysis, and X‐ray diffraction analysis. Normal and responsive graft copolymers have been studied for removal of model contaminant (kaolin), and responsive graft copolymers have been used to remove methylene blue dye (without using any adsorbent) from water by applying external magnetic field. The upgraded block copolymers have shown best performance in wastewater treatment.

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Synthesis, characterization and application of novel polyacrylamide‐grafted barley

Cited by 23 publications

References 32 publications

Preparation of polyacrylamide via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP) for Pb2+ sensing

Preparation of polyacrylamide via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP) for Pb2+ sensing

Comparative Studies on the High Performance Flocculating Agent of Novel Polyacrylamide grafted Oatmeal

Synthesis of IONP's decorated graft copolymers and study of their magnetic force–induced wastewater treatment

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