• optimized synthesis of polyacrylamide (pam) with

    Optimized synthesis of polyacrylamide (PAM) with

    P. Pal, J.P. Pandey, G. Sen, Chapter 5-Synthesis and application as programmable water soluble adhesive of polyacrylamide grafted gum tragacanth (GT-g-PAM), Biopolymer Grafting, (2018) 153–203.

  • optimized synthesis of polyacrylamide (pam) with

    Optimized synthesis of polyacrylamide (PAM) with

    Request PDF Optimized synthesis of polyacrylamide (PAM) with UV/H2O2 initiating system and evaluation of its application performance Ultraviolet (UV) initiation polymerization has been

  • synthesis of cationic polyacrylamide by low-pressure uv

    Synthesis of cationic polyacrylamide by low-pressure UV

    2017-03-15· PADC was synthesized by aqueous solution polymerization via low-pressure UV initiation. Fig. 1(a) shows the experimental setup used in this research.Predetermined amounts of main chain monomer acrylamide, cationic monomer DMDAAC, and hydrophobic monomer CDEA were dissolved in a quartz wide-mouth jar with 20 mL deionized water.

  • (pdf) synthesis and characterization of

    (PDF) SYNTHESIS AND CHARACTERIZATION OF

    SYNTHESIS AND CHARACTERIZATION OF POLYACRYLAMIDE WITH CONTROLLED MOLAR WEIGHT . Article (PDF Available) · September 2011 with 4,515 Reads How we measure 'reads' A 'read' is counted each time

  • synthesis of anion polyacrylamide under uv initiation

    Synthesis of anion polyacrylamide under UV initiation

    To investigate the significance of UV irradiation during APAM polymerization, comparison between APAM 1 and APAM 2 which was prepared without UV irradiation in a water bath at 40 °C for 5 h following the same synthesis procedure described n above was performed.. 2.3. Structure and morphology. The FT-IR spectra of APAM 1 and APAM 2 were obtained by a 550 Series II IR spectrometer (METTLER

  • response surface methodology and optimized synthesis

    Response Surface Methodology and Optimized Synthesis

    Request PDF Response Surface Methodology and Optimized Synthesis of Partially-Hydrolyzed Polyacrylamide Based Hydrogels for Water Shut-Off In this research article, a

  • microwave initiated synthesis of polyacrylamide grafted

    Microwave initiated synthesis of polyacrylamide grafted

    Microwave initiated synthesis of polyacrylamide grafted casein (CAS-g-PAM) A suspension of 1 g of casein in 40 ml of distilled water was prepared. Desired amount of acrylamide diluted in 10 ml water was added to the casein suspension.

  • 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.

  • polyacrylamide grafted agar: synthesis and applications

    Polyacrylamide grafted Agar: Synthesis and applications

    2012-10-01· Highlights Polyacrylamide grafted Agar was synthesized by conventional technique and microwave assisted technique. Higher the percentage grafting of the graft copolymer, higher is its intrinsic viscosity. The graft copolymer proved superior flocculant in kaolin suspension and in waste water. The optimized flocculant dose as found in Kaolin suspension was 0.75 ppm.

  • ultraviolet-assisted synthesis of polyacrylamide-grafted

    Ultraviolet-assisted synthesis of polyacrylamide-grafted

    2016-10-20· In the present work, a new flocculant, polyacrylamide-grafted chitosan nanoparticles (NCS-g-PAM), was synthesized by the copolymerization of acrylamide (AM) and chitosan nanoparticle (NCS) under ultraviolet irradiation using 2-hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone as photo-initiator.The NCS was prepared by the ionic gelation between chitosan and sodium

  • rapid synthesis of well-defined polyacrylamide by aqueous

    Rapid Synthesis of Well-Defined Polyacrylamide by Aqueous

    ATRP of acrylamide in both water and a glycerol−water resultant polyacrylamide. However, even under optimized conditions the dispersity was relatively high (∼1.7), with size exclusion chromatography (SEC) traces revealing low molec-ular weight tailing, thus indicating extensive termination events; it is noted that this ligand will stabilize copper(I) due to the presence of low-lying π

  • synthesis of cationic polyacrylamide by low-pressure

    Synthesis of cationic polyacrylamide by low-pressure

    Synthesis of cationic polyacrylamide by low-pressure UV initiation for turbidity water flocculation Article in Chemical Engineering Journal 312 · November 2016 with 101 Reads How we measure 'reads'

  • microwave assisted synthesis of polyacrylamide grafted

    Microwave assisted synthesis of polyacrylamide grafted

    Synthesis of polyacrylamide (PAM) grafted soya peptone was performed by the microwave assisted method using ceric ammonium nitrate (CAN) as free radical initiator. The synthesis was optimized by

  • uv-initiated polymerization of cationic polyacrylamide

    UV-Initiated Polymerization of Cationic Polyacrylamide

    UV-Initiated Polymerization of Cationic Polyacrylamide: Synthesis, Characterization, and Sludge Dewatering Performance Huaili Zheng,1 Yongjun Sun,1 Xiaomin Tang,1 Mingzhuo Tan,2 Jiangya Ma,1 Wei Chen,1 and Yong Liao 1

  • study on synthesis and thermal property

    Study on Synthesis and Thermal Property

    Study on Synthesis and Thermal Property of Polyvinylamine Study on Synthesis and Thermal Property of Polyvinylamine. Article Preview. Abstract: Polyvinylamine (PVAm) and polyvinylamine chloride (PVAm•HCl) were synthesized by Hofmann degradation of polyacrylamide (PAM). The reaction condition is gentle and the operation is safe, simple and economical so that it is a good reaction

  • synthesis, characterization and application of water

    Synthesis, characterization and application of water

    The synthesis of star polymers based on 2,4,6‐tris‐hydroxymethyl phenol (THP) and polyacrylamide (PAM) was carried out by free radical polymerization using potassium persulfate as an initiator. THP was prepared from phenol and formaldehyde by the Lederer−Manasse reaction. Varying the amount of acrylamide monomer, five different grades of

  • synthesis, characterization, and flocculation properties

    Synthesis, Characterization, and Flocculation Properties

    Compared with linear polymers, branched polymers have lower viscosity and better solubility and can be dispersed more rapidly into water . The synthesis of a branched polyacrylamide using a supernormal valence transition metal, such as potassium diperiodatocuprate K 5 [Cu(HIO 6) 2](Cu(III)), as an initiator, in alkaline medium, and being

  • polyacrylamide (pam) request pdf

    Polyacrylamide (PAM) Request PDF

    Polyacrylamide (PAM) is a water-soluble polymer that is widely used as a flocculant in sewage treatment. The accumulation of PAM affects the formation

  • removal of heavy metal water pollutants (co2+ and ni2

    Removal of Heavy Metal Water Pollutants (Co2+ and Ni2

    2019-06-30· Nanocomposites composed of polyacrylamide and nanoclay were synthesized via free-radical cross-linking polymerization and used to adsorb Co 2+ and Ni 2+ ions from water. The polyacrylamide (PAM)/sodium montmorillonite (Na-MMT) nanocomposites were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy to

  • photo‐induced hydrogel formation based on g‐c 3 n 4

    Photo‐Induced Hydrogel Formation Based on g‐C 3 N 4

    polyacrylamide (PAM) with superior UV absorption and visible transparence capabilities are reported. CNNS is employed not only as a photocatalytic initiator to trigger the polymerization of acrylamide, but also as a cross-linker to 3D connected PAM chains via hydrogen bonds. The obtained CNNS/ PAM hydrogels are highly moldable for preparing various forms, and have good mechanical properties

  • synthesis of stable dispersions of water

    SYNTHESIS OF STABLE DISPERSIONS OF WATER

    Water-soluble and stable dispersions of silver nanoparticles (Ag NPs) were obtained using a straightforward one-step synthesis method. Polyacrylamide (PAM), a kind of water-soluble polymer with polar amide group, is used as stabilizing agent to prevent the

  • synthesis, characterization and application of water

    Synthesis, characterization and application of water

    2014-10-01· Read "Synthesis, characterization and application of water‐soluble star polymers based on 2,4,6‐tris‐hydroxymethyl phenol and polyacrylamide, Polymer International" on DeepDyve, the largest online rental service for scholarly research with thousands of

  • study on synthesis and thermal property

    Study on Synthesis and Thermal Property

    Study on Synthesis and Thermal Property of Polyvinylamine Study on Synthesis and Thermal Property of Polyvinylamine. Article Preview. Abstract: Polyvinylamine (PVAm) and polyvinylamine chloride (PVAm•HCl) were synthesized by Hofmann degradation of polyacrylamide (PAM). The reaction condition is gentle and the operation is safe, simple and economical so that it is a good reaction

  • kinetics of synthesis and characterization of polyacrylamide

    Kinetics of Synthesis and Characterization of Polyacrylamide

    KINETICS OF SYNTHESIS AND CHARACTERIZATION OF POLYACRYLAMIDE by CHERNG-JU KIM, B.Eng., M.Eng. A Thesi s SUbmitt'ea to the Schoo..! of Graduate Stuaies in Partial FulfiJment of the Requirements for the Degree Doctor of Philosophy " McMaster University November 1983 • •. '

  • research article uv-initiated polymerization of cationic

    Research Article UV-Initiated Polymerization of Cationic

    Research Article UV-Initiated Polymerization of Cationic Polyacrylamide: Synthesis, Characterization, and Sludge Dewatering Performance HuailiZheng, 1 YongjunSun, 1 XiaominTang, 1 MingzhuoTan, 2 JiangyaMa, 1 WeiChen, 1 andYongLiao 1 Key laboratory of ther ee Gorges Reservoir Region s Eco-Environment, State Ministry of Education, Chongqing

  • hydrophobic modification of cationic microblocked

    Hydrophobic modification of cationic microblocked

    Zheng HL, Ma JY, Zhu CJ, Zhang Z, Liu LW, Sun YJ, Tang XM (2014) Synthesis of anion polyacrylamide under UV initiation and its application in removing dioctyl phthalate from water through flocculation process. Sep Purif Technol 123:35–44. Article; Google Scholar

  • molecules free full-text synthesis

    Molecules Free Full-Text Synthesis

    The synthesis of konjac glucomannan-graft-polyacrylamide (KGM-g-PAM) was carried out at 25°C by γ-irradiation under a N 2 atmosphere. The effects of absorbed radiation dosage and monomer concentration on grafting yield and water absorbency were studied.

  • the myth of polyacrylamide hydrogels: polyacrylamide

    The Myth of Polyacrylamide Hydrogels: Polyacrylamide

    risk as acrylamide is water-soluble and can easily enter watersheds. One of the greatest pleasures of gardening is getting your hands into good, rich soil and breathing in its aroma. I believe that the increased, and indiscriminate, use of polyacrylamide hydrogels is an extremely serious hazard to human health and to the environment.

  • preparation of poly-acrylamide functionalized aunps

    Preparation of poly-acrylamide functionalized AuNPs

    Supporting Information Poly-acrylamide protected gold nanoparticles for determination of manganese ions Lulu Xun,a,b Juan Qiao,b Li Qi,*b Jie Huanga and Huiwu Cai*a a School of chemistry and chemical engineering, Xi’an University of Science and Technology, Shaanxi, 710054, P. R. China

  • preparation, characterization, and sludge conditioning

    Preparation, characterization, and sludge conditioning

    1 Article 2 Preparation, characterization, and sludge 3 conditioning of cationic polyacrylamide synthesized 4 by a novel UV-initiated system 5 6 Qingqing Guan1,*, Guocheng Zhu 2, Yi Liao c, Jin Xu 1, Xiaoxu Sun 1, Fang Tian 1, Jiaxing Xu 1 7 and Minghan Luo 1 8 1 Department of the Environmental Engineering, Nanjing Institute of Technology, 1 Hongjing Avenue,

  • rapid synthesis of well-defined polyacrylamide

    Rapid Synthesis of Well-Defined Polyacrylamide

    Careful optimization of the levels of Cu(I)Br and Me6TREN allowed for the synthesis of polyacrylamide of a range of molecular weights (DPn = 20–640) proceeding to quantitative conversion within just a few minutes (typically full conversion is attained within 15 min of reaction time) and exhibiting narrow MWDs (Đ as low as 1.09), which

  • research article photoinitiated polymerization of cationic

    Research Article Photoinitiated Polymerization of Cationic

    Synthesis of the Copolymer. P(AM-DAC) was synthe-sized from two monomers, namely, AM and DAC, in an aqueous reaction system. e reaction took place under UV irradiation, and the speci c procedure was shown step by step as follows. AM and DAC of varying dosages were dissolved in deionized water in the reaction vessel. e

  • synthesis, characterization, and flocculation performance

    Synthesis, characterization, and flocculation performance

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  • electronic supporting information dendritic star polymer

    Electronic Supporting Information Dendritic Star Polymer

    Synthesis of homopolymer of acrylamide (PAM) Polyacrylamide was synthesized by solution polymerization technique, using K 2 S 2 O 8 as initiator. Acrylamide (2 g, 28.14 mmol, 300 equivalents) was dissolved in 10 mL of water and the mixture was stirred continuously for 15 minutes under nitrogen gas purging and heating up to 55 °C. K 2 S 2 O 8

  • rapid synthesis of well-defined polyacrylamide by aqueous

    Rapid synthesis of well-defined polyacrylamide by aqueous

    Supporting Information Rapid synthesis of well-defined polyacrylamide by aqueous Cu(0)-mediated reversible-deactivation polymerization Glen R. Jones, a Zaidong Li, Athina Anastasaki,a,b Danielle Lloyd, a Paul Wilson,a,b Qiang Zhang, David M. Haddleton *a,b a University of Warwick, Chemistry Department, Library road, CV4 7AL, Coventry, United

  • o ultrasound-assisted synthesis of polyacrylamide-grafted

    O Ultrasound-assisted synthesis of polyacrylamide-grafted

    A polymeric adsorbent based on sodium alginate (SAG) grafted with polyacrylamide (PAM) (SAG-g-PAM) was synthesized using an ultrasound-assisted method. The addition polymerization was carried out with ammonium persulfate as the initiator, at different acrylamide (AM) concentrations. The SAG-g-PAM copolymers were evaluated by FTIR

  • research article uv-initiated polymerization of cationic

    Research Article UV-Initiated Polymerization of Cationic

    Research Article UV-Initiated Polymerization of Cationic Polyacrylamide: Synthesis, Characterization, and Sludge Dewatering Performance HuailiZheng, 1 YongjunSun, 1 XiaominTang, 1 MingzhuoTan, 2 JiangyaMa, 1 WeiChen, 1 andYongLiao 1 Key laboratory of ther ee Gorges Reservoir Region s Eco-Environment, State Ministry of Education, Chongqing

  • synthesis, characterization and application of water

    Synthesis, characterization and application of water

    2014-10-01· Read "Synthesis, characterization and application of water‐soluble star polymers based on 2,4,6‐tris‐hydroxymethyl phenol and polyacrylamide, Polymer International" on DeepDyve, the largest online rental service for scholarly research with thousands of

  • emission mechanism understanding and tunable persistent

    Emission Mechanism Understanding and Tunable Persistent

    Fig. S8 Photographs of different PAM/water solutions taken under 365 and 312 nm UV lights or after ceasing the irradiation at 77 K. Fig. S9 (A) PL spectra, (B) peak intensities and (C) photographs taken under 365 nm UV light of PAA in water and water/acetone mixtures with different acetone fractions (f a s)

  • deswater

    DESWATER

    Sajjad Aghabalazadeh, Mohammad Reza Ganjali, Parviz Norouzi Graphene oxide based dispersive micro solid phase extraction for selective preconcentration of erbium from water samples and its determination by high-resolution continuum source electrothermal atomic absorption spectrometry

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