synthesis of cationic polyacrylamide by low-pressure uv

Synthesis of cationic polyacrylamide by low-pressure UV

Generally, cationic polyacrylamide is copolymerized by acrylamide (AM) and cationic monomers in an aqueous solution. Among various cationic monomers, (3-acrylamidopropyl) trimethyl ammonium chloride (ATMAC) is the first used cationic monomer because of the rich amine groups.

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synthesis of cationic polyacrylamide/silica nanocomposites

Synthesis of cationic polyacrylamide/silica nanocomposites

Synthesis of cationic polyacrylamide/silica nanocomposites from inverse emulsion polymerization and their flocculation property for papermaking Author links open overlay panel Dong Ho Yoon a b Jung Won Jang b In Woo Cheong a

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synthesis of block cationic polyacrylamide precursors

Synthesis of block cationic polyacrylamide precursors

Synthesis of cationic polyacrylamides (CPAMs) by introducing cationic polymer precursors followed by chain extension of acrylamide (AM) homopolymer blocks via RAFT polymerization is a promising approach for engineering high-performance CPAMs. However, the aqueous solution polymerization of AM usually leads to high viscosity, thus limiting the solid content in the polymerization system.

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synthesis of a cationic polyacrylamide by a photocatalytic

Synthesis of a cationic polyacrylamide by a photocatalytic

Synthesis of a cationic polyacrylamide by a photocatalytic surface-initiated method and evaluation of its flocculation and dewatering performance: nano-TiO 2 as a photo initiator† Yongzhi Liu , ab Huaili Zheng , * ab Yili Wang , c Xinyu Zheng , ab Moxi Wang , ab Jie Ren ab and Chuanliang Zhao ab

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synthesis of cationic polyacrylamide/silica nanocomposites

Synthesis of cationic polyacrylamide/silica nanocomposites

Synthesis of cationic polyacrylamide/silica nanocomposites from inverse emulsion polymerization and their flocculation property for papermaking

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synthesis of cationic polyacrylamide via inverse emulsion

Synthesis of cationic polyacrylamide via inverse emulsion

Synthesis of cationic polyacrylamide via inverse emulsion polymerization method for the application in water treatment Full Article Figures & data

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asian journal of chemistry; vol. 26, no. 3 (2014), 629-633

Asian Journal of Chemistry; Vol. 26, No. 3 (2014), 629-633

cationic polyacrylamide through second generation solution polymerization at the first time. Up to now, synthesis tec hno-logies of CP AM had e xper ienced a lot of de velopments, inc lu-ding fr ee r adical copol ymer iza tion method , cationic modif ica-tion of PAM methods and cationic grafting polymerization methods11,12. The modif ica tion

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a branched hydrophobicity associated with polyacrylamide

A branched hydrophobicity associated with polyacrylamide

A branched hydrophobicity associated with polyacrylamide based on silica was synthesized successfully. The structure of the polymer was characterized by Fo Several properties such as intrinsic viscosity, temperature resistance, salt tolerance, shear resistance and viscoelasticity of the polymer were evaluated.

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synthesis, characterization, and flocculation properties

Synthesis, characterization, and flocculation properties

Dong Ho Yoon, Jung Won Jang and In Woo Cheong, Synthesis of cationic polyacrylamide/silica nanocomposites from inverse emulsion polymerization and their flocculation property for papermaking, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 10.1016/j.colsurfa.2012.06.036, 411, (18-23), (2012).

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cationic polyacrylamide emulsion with ultra-high

Cationic polyacrylamide emulsion with ultra-high

“Synthesis of cationic polyacrylamide/silica nanocomposites from inverse emulsion polymerization and their flocculation property for papermaking,” Colloids and Surfaces A: Physicochemical and Engineering Aspects 411, 18-23. DOI: 10.1016/j.colsurfa.2012.06.036

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effect of template on structure and properties of cationic

Effect of Template on Structure and Properties of Cationic

Synthesis of a Cationic Polyacrylamide under UV Initiation and Its Flocculation in Estrone Removal. International Journal of Polymer Science 2018, 2018, 1-11. DOI: 10.1155/2018/8230965. Yong Liao, Xinyu Zheng, Zhaoqing Zhang, Bincheng Xu, Yongjun Sun, Yongzhi Liu, Huaili Zheng.

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study on the dissociation of a new cationic polyacrylamide

Study on the Dissociation of A New Cationic Polyacrylamide

Abstract: A new kind of cationic polyacrylamide, PAm·MG, has been prepared by the modification of polyacrylamide (—CONH_z) with HCHO and dieyanodiamide. Three PAm·MG species with various degree of substitution (S) have been obtained by varying the ratio HCHO/-CONH_2. They are water-soluble and show effective floccu-lation for the active dyes.

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flocculation mechanism induced by cationic polymers

Flocculation Mechanism Induced by Cationic Polymers

Three cationic polymers with molecular weights and charge densities of 3.0 × 105 g/mol and 10%, 1.1 × 105 g/mol and 40%, and 1.2 × 105 g/mol and 100% were chosen as flocculants to aggregate silica particles (90 nm), under various conditions, including change in polymer dosage, particle concentration, background electrolyte concentration, and shear rate.

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interaction and adsorption of hydrophobically modified

Interaction and Adsorption of Hydrophobically Modified

The adsorption of polymers affects the cost and oil recovery in oil reservoir exploitation and the flocculation effect in the treatment of oil sand tailings. The adhesion and adsorption of a hydrophobically modified polyacrylamide (HMPAM), i.e., P(AM-NaAA-C 16 DMAAC), on silica and asphaltene were investigated using surface force measurements, thermodynamic analysis and quartz crystal

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interaction and adsorption of hydrophobically modified

Interaction and Adsorption of Hydrophobically Modified

Research Article Interaction and Adsorption of Hydrophobically Modified Polyacrylamide on Silica and Asphaltene Surfaces Wenjie Zou ,1 Zichuan Fang,1 Zhijun Zhang ,2 and Zhenzhen Lu 3 1Civil and Resource Engineering School, University of Science and Technology Beijing, Beijing 100083, China 2School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, China

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synthesis and characterization of porous hydrogel based

Synthesis and characterization of porous hydrogel based

Full Article. Synthesis and Characterization of Porous Hydrogel Based on Lignin and Polyacrylamide. Qinghua Feng, a,b Jinling Li, a Heli Cheng, a Fangeng Chen, c, * and Yimin Xie a, * A porous lignin-containing hydrogel was developed for dye removal via graft copolymerization of acetic acid lignin (AAL) and acrylamide (AAm), in the presence of ethyleneglycol dimethacrylate (EGDMA) as a

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synthesis, characterization and evaluation

Synthesis, characterization and evaluation

In this paper the suitability of a graft polymer nanocomposite hydrogel system for enhanced oil recovery was examined using polyacrylamide graft starch/clay nanocomposite (a laboratory synthesized product) and chromium (III) acetate (crosslinker). X-ray diffraction analysis, Fourier transform infrared spectrometry analysis, field-emission scanning electron microscopy and transmission electron

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silica deposition by a strongly cationic proline‐rich

Silica deposition by a strongly cationic proline‐rich

Silica deposition by a strongly cationic proline‐rich protein from systemically resistant cucumber plants. the synthesis of a strongly cationic PRP prepares the cell walls for enhanced silica deposition which is known to participate in cell wall reinforcement, localized at the site of attempted penetration of fungi into epidermal cells

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polyacrylamide

Polyacrylamide

Polyacrylamide (IUPAC poly(2-propenamide) or poly(1-carbamoylethylene), abbreviated as PAM) is a polymer (-CH 2 CHCONH 2-) formed from acrylamide subunits. It can be synthesized as a simple linear-chain structure or cross-linked, typically using N,N '-methylenebisacrylamide.In the cross-linked form, the possibility of the monomer being present is reduced even further.

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dr. sagar pal - indian institute of technology

Dr. Sagar Pal - Indian Institute of Technology

Microwave initiated synthesis of polyacrylamide grafted carboxymethylstarch (CMS-g-PAM): Application as a novel matrix for sustained drug release. Gautam Sen, Ranvijay Kumar, S. Ghosh, Sagar Pal*. Carbohydrate Polymers , 77, pp. 822-831, 2009 .

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adsorption of cationic nanospheres on cotton fibers: the

Adsorption of cationic nanospheres on cotton fibers: the

Yoon DH, Jang JW, Cheong IW (2012) Synthesis of cationic polyacrylamide/silica nanocomposites from inverse emulsion polymerization and their flocculation property for papermaking. Colloid Surface A 411:18–23

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synthesis and bactericidal properties of porphyrins

Synthesis and bactericidal properties of porphyrins

Synthesis and bactericidal properties of porphyrins immobilized in a polyacrylamide support: penetration into the cell of many photosensitising dyes.14 Only cationic dyes allow an extensive polydimethylsiloxane, indium tin oxide films, silica magnetic nanoparticles, polyamide 6, polyurethane, polystyrene, polycaprolactone and the

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sol–gel synthesis of nanosilica-coated para-aramid fibers

Sol–gel synthesis of nanosilica-coated para-aramid fibers

Sol–gel synthesis of nanosilica-coated para-aramid preparation of spherical silica particles via sol–gel process,24–27 106–4 106 g mol 1) and cationic polyacrylamide (CPAM) (M w ¼ 5 106–8 106 g mol 1) were from Sumitomo Re ning Co., Ltd., Japan. Two aramid bers: para-aramid chopped ber and

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polyacrylamide grafted on multi‐walled carbon nanotubes

Polyacrylamide grafted on multi‐walled carbon nanotubes

A new nanoparticle‐bound polymer stationary phase was prepared by in situ polymerization of methacrylamide (MAA), bis‐acrylamide crosslinker, and carboxylated multi‐walled carbon nanotubes (multi‐walled CNTs; MWNTs), using the abundant double bonds in the cyclopentadienyl rings in MWNT structure, on a silanized capillary. Each intermediate capillary between the synthesis steps was

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synthesis and characterization of cationic surfactants

Synthesis and characterization of cationic surfactants

Two cationic surfactants (N-isopropyl-N, N-dimethyldodecan-1-aminium bromide (S 1) and N-isopropyl-N, N-dimethylhexadecan-1-aminium bromide (S 2)) are synthesized.The chemical structure of the synthesized surfactants was confirmed by Fourier transform infrared (FTIR) and 1 H Nuclear magnetic resonance spectroscopy. Critical micelle concentration (CMC) of the synthesized cationic surfactants

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synthesis and properties of polyacrylamide

Synthesis and properties of polyacrylamide

Polyacrylamide (PAM)-encapsulated clay nanoparticles (NPs) were successfully synthesised by conventional emulsion polymerisation for solving the aggregation matter of nanoscaled clay. A novel nanofluid based on PAM has been developed and its’ attributes have been experimentally tested as an optimised solution. The frequency, sonication time effect, NPs and polymer concentration on the

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synthesis, characterization and evaluation

Synthesis, characterization and evaluation

In this paper the suitability of a graft polymer nanocomposite hydrogel system for enhanced oil recovery was examined using polyacrylamide graft starch/clay nanocomposite (a laboratory synthesized product) and chromium (III) acetate (crosslinker). X-ray diffraction analysis, Fourier transform infrared spectrometry analysis, field-emission scanning electron microscopy and transmission electron

Get Price
dr. sagar pal - indian institute of technology

Dr. Sagar Pal - Indian Institute of Technology

Microwave initiated synthesis of polyacrylamide grafted carboxymethylstarch (CMS-g-PAM): Application as a novel matrix for sustained drug release. Gautam Sen, Ranvijay Kumar, S. Ghosh, Sagar Pal*. Carbohydrate Polymers , 77, pp. 822-831, 2009 .

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synthesis of silica/polystyrene nanocomposite particles

Synthesis of Silica/Polystyrene Nanocomposite Particles

Synthesis of Silica/Polystyrene Nanocomposite Particles by Miniemulsion Polymerization Mohammad Barari*1,2, Naser Sharifi-Sanjani3, Shahrzad Abdolmohammadi 1 1Department of Chemistry, Faculty of Science, East Tehran Branch, Islamic Azad University, Tehran, Iran 2Research Center of Polymer Synthesis, Division of Polymer Science and Technology,

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interaction and adsorption of hydrophobically modified

Interaction and Adsorption of Hydrophobically Modified

The adsorption of polymers affects the cost and oil recovery in oil reservoir exploitation and the flocculation effect in the treatment of oil sand tailings. The adhesion and adsorption of a hydrophobically modified polyacrylamide (HMPAM), i.e., P(AM-NaAA-C 16 DMAAC), on silica and asphaltene were investigated using surface force measurements, thermodynamic analysis and quartz crystal

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synthesis and characterization of hyperbranched

Synthesis and characterization of hyperbranched

The synthesis of HDPAM. HDPAM was synthesized by water free-radical copolymerization (see Scheme 1).A 250 mL three-necked round flask was equipped with a mechanical stirrer, N 2 inlet and outlet. 0.05 g of FPA-G2.0-SiO 2, 16.90 g of AM, 3.0 g of AA, and 0.6 g of C 16 DM were dissolved in 50.0 g of distilled water and placed in the flask. Sodium hydroxide solution was used to control the pH

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synthesis and implication of novel poly(acrylic acid

Synthesis and implication of novel poly(acrylic acid

Exposure to lead can be waterborne, airborne or food borne, where lead escapes into water usually due to leakage in pipes 1,2,3.High water temperature, acidity and standing time in corroded and

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