• characterization of a polyacrylamide solution used

    Characterization of a Polyacrylamide Solution Used

    2016-01-01· For an air-PAM solution system, in which the injected fluid is the PAM solution and the defended fluid is air, N m is higher when the viscosity of the injected PAM solution is higher (see Equation (1)). The PAM solution is a non-Newtonian fluid, as seen in Figure 10.

  • characterization of a polyacrylamide solution used

    Characterization of a Polyacrylamide Solution Used

    Biopolymers are viewed as effective and eco-friendly agents in soil modification. This study focuses on the wettability analysis of polyacrylamide (PAM) solutions for soil remediation. The contact angle, surface tension, and viscosity of PAM solutions were experimentally evaluated in air- and decane-biopolymer solution systems. Furthermore, a micromodel was used to investigate the pore-scale

  • preparation and characterization of polyacrylamide

    Preparation and characterization of polyacrylamide

    1. Introduction. Dye wastewater is a type of industrial wastewater produced from dye plants. Approximately 3 × 10 6 –4 × 10 6 m 3 of dye wastewater effluent are released daily in China. This wastewater with high organic matter content, high alkalinity, and remarkably altered water quality contains dyes, auxiliary agent, and toxicant.

  • for remediation of petroleum contaminated soils

    for Remediation of Petroleum Contaminated Soils

    Characterization of a Polyacrylamide Solution Used for Remediation of Petroleum Contaminated Soils Remediation of Petroleum Contaminated Soil Soil contamination in urban and rural environments

  • quantitative characterization of polyacrylamide–shale

    Quantitative characterization of polyacrylamide–shale

    2017-06-22· This signifies the point at which the clay particles have reached saturation in the anionic polyacrylamide solution. The percentage of reduction of viscosity was approximately same for both the shales at the end of Day 5, which is ~34%. The polyacrylamide was adsorbed onto the surface of shale particles, which leads to decreasing viscosity with

  • (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

  • quantitative characterization of polyacrylamide–shale

    Quantitative characterization of polyacrylamide–shale

    2017-06-22· This signifies the point at which the clay particles have reached saturation in the anionic polyacrylamide solution. The percentage of reduction of viscosity was approximately same for both the shales at the end of Day 5, which is ~34%. The polyacrylamide was adsorbed onto the surface of shale particles, which leads to decreasing viscosity with

  • preparation, characterization, solution properties

    Preparation, characterization, solution properties

    In this report a survey is given on structure and properties of polyacrylamide homopolymers (PAAm) in solution. However the review is restricted to all those papers, where a molecular characterization of the polymers has been achieved as a basis to correlate this fundamental information with

  • synthesis and characterization of polyacrylamide

    SYNTHESIS AND CHARACTERIZATION OF POLYACRYLAMIDE

    Solution polymerization, however, received scant attention for synthesising high molecular weight polyacrylamide despite its advantages and wide use in industry. The objective of this work was to investigate the solution polymerization technique and the effects of process parameters on molecular weight during synthesis of PAM. The

  • synthesis and characterization of acrylamide-based

    Synthesis and Characterization of Acrylamide-Based

    Synthesis and Characterization of Acrylamide-Based Anionic Copolymer and Investigation of Solution Properties H. Jamshidi 1 and A. Rabiee 1 1 Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran

  • rheological and structural characterization

    Rheological and Structural Characterization

    Semidilute solutions of two series of polyacrylamide (AM)-based copolymers containing hydrophobic di-n-propylacrylamide (DPAM) and di-n-octylacrylamide (DOAM) comonomers, namely P(DPAM-co-AM) and P(DOAM-co-AM), have been characterized using rheology and small angle X-ray scattering (SAXS). The relaxation time and plateau modulus obtained from rheology, and the correlation length (ξ)

  • polyacrylamide

    Polyacrylamide

    Polyacrylamide can be supplied in a powder or liquid form, with the liquid form being subcategorized as solution and emulsion polymer. Even though these products are often called 'polyacrylamide', many are actually copolymers of acrylamide and one or more other

  • isolation and characterization of polyacrylamide

    Isolation and Characterization of Polyacrylamide

    Polyacrylamide (PAM) is a water-soluble polymer that is usually produced through the polymerization of acrylamide with one or more copolymers. The amide groups of PAM form hydrogen bonds in aqueous solutions, and high-molecular-weight PAM is an effective flocculant of suspended solids in water via charge neutralization and interparticle bridging [ 1 ].

  • synthesis and characterization of different molecular

    Synthesis and Characterization of Different Molecular

    polyacrylamide solutions were prepared in distilled water. The intrinsic viscosity calculations were made for polyacrylamide after filtration through 250-micron sieve to remove any undissolved ‘gel’ lumps. Dilute solution viscosity method was used to determine the viscosity average molecular weight of the

  • characterization of dilute polyacrylamide

    Characterization of Dilute Polyacrylamide

    Viscoelastic flow behaviour of dilute polymer solutions in porous media is described as a method for characterization of polymer-solvent-temperature systems. Porous media flow tests provide information on the solution state of polymer solutions and the molecular weight of the polymers used. Furthermore, flow-induced and thermally induced

  • characterization of hydrophobically modified

    Characterization of Hydrophobically Modified

    2019-12-03· Figure Figure2 2 shows the 1 H NMR spectral data for hydrophobically modified polyacrylamide (HMPA). The compound was dissolved in dimethyl sulfoxide in deuterated form (DMSO-d 6) as a lock solvent and its spectral data was recorded in the solution state to identify NMR peaks.The existence of characteristic signals at chemical shift (δ) values of 0.81–1.63 ppm relates to methyl −CH

  • characterization of dilute polyacrylamide

    Characterization of Dilute Polyacrylamide

    Viscoelastic flow behaviour of dilute polymer solutions in porous media is described as a method for characterization of polymer-solvent-temperature systems. Porous media flow tests provide information on the solution state of polymer solutions and the molecular weight of the polymers used. Furthermore, flow-induced and thermally induced

  • characterization of a polyacrylamide solution used

    Characterization of a Polyacrylamide Solution Used

    Not Available adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A

  • synthesis and characterization of amphoteric

    Synthesis and characterization of amphoteric

    Synthesis and characterization of amphoteric polyacrylamide by dispersion polymerization in aqueous salts solution Y. Zou, Y.H. Zhang and P.X. He* Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P.R. China

  • synthesis and characterization of porous hydrogel

    Synthesis and characterization of porous hydrogel

    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

  • preparation and characterization of nanocomposite

    Preparation and characterization of nanocomposite

    To optimize the injectivity of the intercalated polyacrylamide solution before the onset of gelation with the gel strength of the final developed gel, sodium lactate was employed as retarder. This was found to be effective to balance these two characteristics of the NC gels, which are aimed to be used for water shut‐off and as profile

  • characterization of polyacrylamide based monolithic

    Characterization of polyacrylamide based monolithic

    Abstract Supermacroporous monolithic polyacrylamide (pAAm)-based columns have been prepared by radical cryo-copolymerization (copolymerization in the moderately frozen system) of acrylamide with functional co-monomer, allyl glycidyl ether (AGE), and cross-linker N,N'-methylene-bis-acrylamide (MBAAm) directly in glass columns (ID 10 mm).

  • synthesis, characterization of polyacrylamide as chelating

    Synthesis, Characterization of polyacrylamide as chelating

    Synthesis, Characterization of polyacrylamide as chelating agent for some metal ions Asmahan A.Abdulla,Hassan T. Abdulsahib and Nadhum A.NAwad Chemistry Department, College of Science, University of Basrah, Basrah,Iraq Received 22/11/2005, Accepted 29/1/2006 Abstract

  • characterization of the adsorption of high molecular

    Characterization of the adsorption of high molecular

    Characterization of the adsorption of high molecular weight non-ionic and cationic polyacrylamide on glass from aqueous solutions using modified atomic force microscopy. / Al-Hashmi, A. R.; Luckham, P. F. In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 358, No.

  • characterization of the formation and degradation of a

    Characterization of the formation and degradation of a

    Characterization of the conformational changes of partially hydrolyzed polyacrylamide chains in solution using stress recovery experiment. pdf 96 Кб Characterization of the free volume in high-impact polystyrenepolypropylene and high-impact polystyrenehigh-density polyethylene blends probed by positron annihilation spectroscopy.

  • synthesis, characterization, and flocculation properties

    Synthesis, Characterization, and Flocculation Properties

    A water soluble branched cationic polyacrylamide (BCPAM) was synthesized using solution polymerization. The polymerization was initiated using potassium diperiodatocuprate, K 5 [Cu(HIO 6 ) 2 ](Cu(III)), initiating the self-condensing vinyl copolymerization of acrylamide and acryloxyethyltrimethyl ammonium chloride (DAC) monomer.

  • polyacrylamide and its derivatives for oil recovery

    Polyacrylamide and its derivatives for oil recovery

    POLYACRYLAMIDE AND ITS DERIVATIVES FOR OIL RECOVERY By Zun Chen A DISSERTATION Presented to the Faculty of the Graduate School of the MISSOURI UNIVERSITY OF SCIENCE AND TECHNOLOGY In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY In CHEMISTRY 2016 Approved by Dr. Thomas P. Schuman, Advisor Dr. Baojun Bai, Co-advisor

  • experiment 2: characterization of polyacrylamide (pam)

    Experiment 2: Characterization of polyacrylamide (PAM)

    Experiment 2: Characterization of polyacrylamide (PAM) by viscometry and gel permeation chromatography (optional) Aim: (a) To determine the intrinsic viscosity and molecular weight of polyacrylamide (synthesized in experiment 1) using a Ubbelohde capillary viscometer.

  • aging and loss of flocculation activity of aqueous

    Aging and loss of flocculation activity of aqueous

    There is a rapid and a slow stage in the decrease of reduced specific viscosity versus time (aging) for a solution of a high intrinsic viscosity polyacrylamide in water. The rapid stage is irreversible and has a fairly high temperature coefficient. Results of the latter type are usually associated with a weak‐link scission mechanism, but they

  • synthesis, characterization, and flocculation properties

    Synthesis, Characterization, and Flocculation Properties

    A water soluble branched cationic polyacrylamide (BCPAM) was synthesized using solution polymerization. The polymerization was initiated using potassium diperiodatocuprate, K5[Cu(HIO6)2](Cu(III)), initiating the self-condensing vinyl copolymerization of ac...

  • physico-chemistry characterization of sulfonated

    Physico-Chemistry Characterization of Sulfonated

    physico-chemistry characterization of sulfonated polyacrylamide polymers, and states the objectives of this research. It starts with a general overview about polymer applications in oil industry, and followed by the viscosity and adsorption/retention study of polymers which must be well known before the application processes. Here all the main

  • preparation and characterization of a soy protein based

    Preparation and characterization of a soy protein based

    Preparation and characterization of a soy protein based bio-adhesive crosslinked by waterborne epoxy resin and polyacrylamide simple and environmentally friendly approach for preparing a high adhesion performance soy protein adhesive in aqueous solution by using waterborne-epoxy resin, soy protein and water-soluble polyacrylamide (PAM). The chemical structure and curing characteristics, as

  • preparation and characterization of lignin-acrylamide

    Preparation and characterization of lignin-acrylamide

    Full Article. Preparation and Characterization of Lignin-Acrylamide Copolymer as a Paper Strength Additive. Shoujuan Wang, a,† Yunyun Sun, a,c,† Fangong Kong, a,b, * Guihua Yang, a and Pedram Fatehi b,* With currently practiced technology, lignin is either incinerated in the recovery cycle of pulping or wasted in wastewater treatment systems, resulting in its underutilization.

  • adsorption characteristics of polyacrylamide and sulfonate

    Adsorption Characteristics of Polyacrylamide and Sulfonate

    Adsorption Characteristics of Polyacrylamide and Sulfonate-Containing Polyacrylamide Copolymers on Sodium Kaolinite AGNES F. HOLLANDER, P. SOMASUNDARAN, and CARL C. GRYTE,* Department of Chemical Engineering and Applied Chemistry and Henry Krumb School of Mines, Columbia University, New York, New York 10027 Synopsis

  • dissipative particle dynamics simulation on the

    Dissipative particle dynamics simulation on the

    The hydrophobic association of fluorocarbon-modified polyacrylamide aqueous solutions has been investigated on a mesoscopic level by considering the variation of root mean square (RMS) end-to-end

  • characterization of the pore structure of aqueous three

    Characterization of the pore structure of aqueous three

    A variety of characterization techniques that require very little sample preparation and data handling were chosen and include polymerization temperature profiles and conversions, water swelling, differential scanning calorimetry (DSC), polyacrylamide gel electrophoresis (PAGE), Gradiflow electrophoretic separation process and scanning electron

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