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design of a polyacrylamide polymer

  • Polyacrylamide Polymer - an overview | ScienceDirect

    A variety of materials has been used in the design of chromatography matrices (Janson and Ryden, 1998). Among these the most common are polysaccharides (cellulose, dextran, and agarose), synthetic organic polymers (polyacrylamide, polymethacrylate, polystyrene), and …

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  • Design of PG-Surfactants Bearing Polyacrylamide Polymer ...

    2021-2-3 · 2.1. Design of Solubilization Surfactants Bearing Linear Polyacrylamide (PA) Polymer Chain To synthesize the polymer-appended DKDKC12K, we separately synthesized the hydrophilic polymer and the surfactant parts and then joined them. For the surfactant part, we chose the PG-surfactant DKDKC12KC, in which one Cys residue was added to the

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  • Design of high-toughness polyacrylamide hydrogels

    2009-11-3 · In the present work, a series of hydrophobically modified polyacrylamide (PAAm) hydrogels were prepared via micellar crosslinking copolymerization of acrylamide (AAm) monomer and N, N ′-methylenebis (acrylamide) (BAAm) crosslinker in the presence of a hydrophobic comonomer.

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  • Design of PG-Surfactants Bearing Polyacrylamide

    The development of techniques capable of using membrane proteins in a surfactant-free aqueous buffer is an attractive research area, and it should be elucidated for various membrane protein studies. To this end, we examined a method using new solubilization surfactants that do not detach from membrane protein surfaces once bound. The designed solubilization surfactants, DKDKC12K-PAn (n = 5, 7 ...

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  • Design of PG-Surfactants Bearing Polyacrylamide

    Shimamoto T, Nakakubo T, Noji T, Koeda S, Kawakami K, Kamiya N, Mizuno T. Design of PG-Surfactants Bearing Polyacrylamide Polymer Chain to Solubilize Membrane Proteins in a Surfactant-Free Buffer. International Journal of Molecular Sciences. 2021; 22(4):1524. https://doi.org/10.3390/ijms22041524 Chicago/Turabian Style

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  • An Optimization Study of Polyacrylamide

    2018-9-7 · The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as …

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  • Polyacrylamide degradation and its implications in ...

    2021-2-3 · Design of PG-Surfactants Bearing Polyacrylamide Polymer Chain to Solubilize Membrane Proteins in a Surfactant-Free Buffer. Taro Shimamoto. Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, Japan.

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  • Design of PG-Surfactants Bearing Polyacrylamide

    2009-2-19 · This work focuses on the development of a proof-of-concept optical sensor design that incorporates an amine-functionalized polyacrylamide hydrogel into a 1D porous silicon (PSi) photonic crystal. The PSi acts as both a template and a transducer capable of detecting morphological and dielectric changes in the incorporated hydrogel structure.

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  • Polyacrylamide (PAM) - Michigan

    2017-7-21 · appropriate polymer Materials Polyacrylamide Mulch . Design Specifications PAM may be applied in dissolved form with water, or it may be applied in dry, granular, or powered form. The preferred application method is the dissolved form. PAM is to be applied at a maximum rate of ½ pound PAM per 1000 gallons water per 1 acre of bare soil.

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  • Design of a Drug-Delivery System Based On

    2020-5-29 · Polyacrylamide Hydrogel Figure 1. Schematic pathway for the synthesis of polyacrylamide hydrogels. Figure 2. Schematic representation of a DSC curve related to a semicrystalline polymer showing the glass transition temperature (Tg), crystallization temperature (Tc) and melting temperature (Tm). Table 1. MBAAm Concentration Variation for Crosslinked

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  • Design of a drug delivery system based on

    2007-9-4 · Journal of Applied Polymer Science. Volume 106, Issue 6. Design of a drug delivery system based on poly ... The process involves the synthesis of nanoparticles of polyacrylamide by inverse microemulsion polymerization and their complexation with chitosan dissolved in …

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  • A comprehensive review of polyacrylamide polymer

    2015-8-1 · Summary Polyacrylamide polymer gels have made a significant im- pact on shut-off and profile control treatments, the sealing of open wellbores, abandonment of zones or wells, and so on. The development of preformed particle gels is a promising direction in polymer gel treatments since these gels overcome several in-situ gel inherent problems.

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  • Polyacrylamide Gel-Entrapped Maltase: An Excellent

    2019-7-30 · paper, the effects of polymer and crosslinker concentrations and their influences on gelation time and viscosity were investigated. Central composite design (CCD) was used to determine the optimized organically crosslinked polymer gel formulation. Concentrations of two main raw materials, namely, polyacrylamide (PAM) and polyethylenimine (PEI ...

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  • An Optimization Study of Polyacrylamide-

    2018-10-2 · Central composite design (CCD) was used to determine the optimized organically crosslinked polymer gel formulation. Concentrations of two main raw materials, namely, polyacrylamide (PAM) and polyethylenimine (PEI), were varied in a suitable range.

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  • An Optimization Study of Polyacrylamide

    2018-9-7 · The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as …

    Get Price
  • Polyacrylamide degradation and its implications in ...

    2015-3-1 · Water soluble anionic polyacrylamide (PAM), a linear polymer synthesized from the petrochemical propylene is commonly used for these agricultural purposes. Though PAM has been shown to be highly effective and relatively inexpensive, its manufacture currently utilizes a non-renewable carbon source that ultimately contributes to increased ...

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  • Polyacrylamide and biopolymer effects on flocculation ...

    This paper presents a laboratory study on the effectiveness of the nitrogen digestion method to determine the polymer concentrations for 3 different kinds of polyacrylamide–type polymers including partially hydrolyzed polyacrylamides, sulfonated polyacrylamides, and cationic polyacrylamides.

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  • Molecular design of modified polyacrylamide for the

    2012-5-29 · Polyacrylamide (PAM) is a very important water-soluble polymer, which is used as a thickener or modifier in the formulations of tertiary oil recovery, drilling fluid, hydraulic fracturing, drag reduction, wastewater treatment [], paper-making, textile printing, metallurgy, soil improvement and so on because of its structural units with the characteristics of high polarity, high reactivity and ...

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  • Effects of Inorganic and Organic Additives on the ...

    2003-3-6 · polyacrylamide on hematite are studied. Adsorption of the polymer is reduced in all cases, with complete depression by phosphate. The relative eff«tiveness of these anions in reducing polymer adsorption in~ in the order chloride < sulfate < phosphate. a trend which corresponds to the relative stabilities of the anion-Fe)+ complex formation.

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  • Synthesis, characterization and evaluation of ...

    2017-11-16 · Synthesis, characterization and evaluation of polyacrylamide graft starch/clay nanocomposite hydrogel system for enhanced oil recovery Rituraj Singh1 • Vikas Mahto1 Received: 6 August 2016/Published online: 7 September 2017 The Author(s) 2017. This article is an open access publication Abstract In this paper the suitability of a graft polymer

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  • Dependence of intrinsic viscosity and molecular size

    2021-4-15 · As a typical water-soluble polymer, ultra-high molecular weight (UHMW) partially hydrolyzed polyacrylamide (HPAM) has been widely used in various industries as thickeners or rheology modifiers. However, precise determination of its critical physical parameters such as molecular weight, radius of gyration ( R g ) and hydrodynamic radius ( R h ...

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  • Hemoglobin Recognition by Imprinting in Semi ...

    2005-7-29 · Semi-interpenetrating polymer network (semi-IPN) hydrogel was prepared to recognize hemoglobin, by molecularly imprinted method, in the mild aqueous media of chitosan and acrylamide in the presence of N,N‘-methylenebisacrylamide as the cross-linking agent. The hydrogel obtained has been investigated by using thermal analysis, X-ray diffraction, differential scanning calorimetry (DSC), and ...

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  • Polyacrylamide Handbook - SNF

    2019-12-31 · Dewatered polyacrylamide emulsions differs from standard by the fact that they contain less than 6% water, with the result that the hydrogel has become almost the dry polymer itself. The consistency of the polymer is similar to plastic material. Most dewatered polyacrylamide emulsions from SNF have names starting by DW.

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  • Thermal gelation of partially hydrolysed

    2019-12-1 · In another study, they employed the Plackett-Burman Design (PBD) to screen the effect of a larger number of factors namely the concentration of polymer and crosslinker, pH, temperature and presence or absence of NaCl, KCl, CaCl 2, MgCl 2, thiourea, sodium lactate and nanoclay, on the gelation time of the same polymer gel . Since the PBD allowed ...

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  • Graphene Improves the Biocompatibility of

    2017-9-8 · A chemically cross-linked polyacrylamide gel (AM) prepared without graphene and a series of hybrid graphene-polyacrylamide gels (AMGX, being X the …

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  • Thermally Responsive Swelling Properties of

    2019-5-26 · Interpenetrating polymer network (IPN), random copolymer, and homopolymer nanoparticles of acrylamide and acrylic acid were prepared using an inverse emulsion polymerization technique. Differential scanning calorimetry and Fourier-transform infrared spectroscopy were used to examine the molecular structure of the prepared polymeric nanoparticles. The spherical morphology and size …

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  • Polyacrylamide - an overview | ScienceDirect Topics

    9.5.3 Chitosan/polyacrylamide. Poly(acrylamide) (PAA), a synthetic polymer, is widely used as a flocculent, a paper strengthening agent, and can also be applied to enhance the recovery of oil [128]. Moreover, PAA is a water-soluble polymer of biomedical and pharmaceutical interest widely studied as a hydrogel for blood compatible material [129].

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  • Molecular design of modified polyacrylamide for the

    2012-5-29 · Polyacrylamide (PAM) is a very important water-soluble polymer, which is used as a thickener or modifier in the formulations of tertiary oil recovery, drilling fluid, hydraulic fracturing, drag reduction, wastewater treatment [], paper-making, textile printing, metallurgy, soil improvement and so on because of its structural units with the characteristics of high polarity, high reactivity and ...

    Get Price
  • Evaluation of factors and kinetics study of

    Polyacrylamide was produced through redox polymerization in a single batch reactor. Ammonium persulfate and sodium bisulfite were applied as the redox initiators. Statistical design consisting a 2 4 full factorial design was used to determine the dependence of the factors such as temperature, concentrations of acrylamide, ammonium persulfate and sodium bisulfite, as well as their interactions ...

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  • Polyacrylamide Handbook - SNF

    2019-12-31 · Dewatered polyacrylamide emulsions differs from standard by the fact that they contain less than 6% water, with the result that the hydrogel has become almost the dry polymer itself. The consistency of the polymer is similar to plastic material. Most dewatered polyacrylamide emulsions from SNF have names starting by DW.

    Get Price
  • Template Polymerization of a Novel Cationic

    2019-5-25 · In this study, the template polymer (TPDA) of dimethyldiallylammonium chloride (DMD) and acrylamide (AM) was synthesized with UV-initiated template polymerization. The reactivity ratio, Fourier transform infrared spectroscopy, 1H NMR spectroscopy, and thermogravimetric analysis were employed to characterize the TPDA properties. The results revealed that the addition of template sodium ...

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  • Polyacrylamide nonionic water-soluble polymer | 9003

    Polyacrylamide is a water-soluble polymer made up of acrylamide subunits. It increases the viscosity of water and facilitates the flocculation of particles present in water. ... Our ability to design receptor-targeted nanocarriers aimed at drug release after endocytosis is limited by the current knowledge of intracellular nanoparticle (NP ...

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  • Thermal gelation of partially hydrolysed

    2019-12-1 · In another study, they employed the Plackett-Burman Design (PBD) to screen the effect of a larger number of factors namely the concentration of polymer and crosslinker, pH, temperature and presence or absence of NaCl, KCl, CaCl 2, MgCl 2, thiourea, sodium lactate and nanoclay, on the gelation time of the same polymer gel . Since the PBD allowed ...

    Get Price
  • 3D Meshlike Polyacrylamide Hydrogel as a Novel

    2019-12-17 · The molecular/structural design of polymeric binders has been pivotal in overcoming the challenges to improve the integrity of Si anode via strong interactions between active materials and binders. In this respect, the covalently crosslinked polyacrylamide (PAM) network, which effectively maintains its mechanical strength and shape, is ...

    Get Price
  • Thermally Responsive Swelling Properties of

    2019-5-26 · Interpenetrating polymer network (IPN), random copolymer, and homopolymer nanoparticles of acrylamide and acrylic acid were prepared using an inverse emulsion polymerization technique. Differential scanning calorimetry and Fourier-transform infrared spectroscopy were used to examine the molecular structure of the prepared polymeric nanoparticles. The spherical morphology and size …

    Get Price
  • Graphene Improves the Biocompatibility of

    2017-9-8 · A chemically cross-linked polyacrylamide gel (AM) prepared without graphene and a series of hybrid graphene-polyacrylamide gels (AMGX, being X the …

    Get Price
  • Polymer waterflooding design and implementation -

    2015-6-9 · When conducting a polymer waterflood, a high-molecular-weight and viscosity-enhancing polymer is added to the water of the waterflood to decrease the mobility of the flood water and, as a consequence, improve the sweep efficiency of the waterflood (See Polymer waterflooding).This articles focuses on the design and field implementation of a polymer waterflood.

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  • Polymer Properties Database - CROW

    2020-7-11 · The only commercially important polyacrylamide is poly(2-propenamide) which is simply called polyacrylamide or PAM [-CH 2 CH(CONH 2)-]. It is a non-ionic, watersoluble, and biocompatible polymer that can be tailored to meet a broad range of applications. The polymer can be synthesized as a simple linear chain or as a cross-linked structure.

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  • Adsorption Characteristics of Polyacrylamide and

    2003-2-20 · polymer solutions in the absence of adsorption, the polyacrylamide polymer (P AM) gave 178 cpm and the copolymer containing the sulfonate, P AMS, gave ISO cpm. When experiments were performed at 60°C, the procedure was slightly modified. The samples were equilibrated with the sodium kaolinite at 60° with

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  • Polyacrylamide nonionic water-soluble polymer | 9003

    Polyacrylamide is a water-soluble polymer made up of acrylamide subunits. It increases the viscosity of water and facilitates the flocculation of particles present in water. ... Our ability to design receptor-targeted nanocarriers aimed at drug release after endocytosis is limited by the current knowledge of intracellular nanoparticle (NP ...

    Get Price
  • Design of a hybrid amine functionalized

    2009-2-12 · Design of a hybrid amine functionalized polyacrylamide hydrogel-porous silicon optical sensor Design of a hybrid amine functionalized polyacrylamide hydrogel-porous silicon optical sensor Bonanno, Lisa M. 2009-02-12 00:00:00 This work focuses on the development of a proof-of-concept optical sensor design that incorporates an amine-functionalized polyacrylamide hydrogel into a 1D …

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  • Influence of polymerization conditions on the

    2006-9-28 · Polyacrylamide was synthesized by a free-radical inverse emulsion technique and optimized via statistical experimental design, with the objective of developing a polymer with a high viscosity within this synthesis technique.

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  • Molecular Structure Characterization and Interaction

    2018-3-26 · The results of this work will enable the design of a pilot to be conducted during 2018 on a mature polymer-flooded area with more than 10 years of polymer-flooding (Buciak, 2013). Keywords: data quality , carbonyl group , experiment , chemical flooding methods , polymer , Upstream Oil & Gas , xanthan gum-polyacrylamide , molecular structure ...

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  • Synthesis, Characterization, and Flocculation

    2019-12-17 · The molecular/structural design of polymeric binders has been pivotal in overcoming the challenges to improve the integrity of Si anode via strong interactions between active materials and binders. In this respect, the covalently crosslinked polyacrylamide (PAM) network, which effectively maintains its mechanical strength and shape, is ...

    Get Price
  • 3D Meshlike Polyacrylamide Hydrogel as a Novel

    2012-4-2 · (2009). Designing Supermacroporous Cryogels Based on Polyacrylonitrile and a Polyacrylamide–Chitosan Semi-interpenetrating Network. Journal of Biomaterials Science, Polymer Edition: Vol. 20, No. 7-8, pp. 877-902.

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  • Designing Supermacroporous Cryogels Based on ...

    2003-2-7 · We report the design and total chemical synthesis of “synthetic erythropoiesis protein” (SEP), a 51-kilodalton protein-polymer construct consisting of a 166-amino–acid polypeptide chain and two covalently attached, branched, and monodisperse polymer moieties that are negatively charged. The ability to control the chemistry allowed us to synthesize a macromolecule of precisely defined ...

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  • Design and Study of a Novel Thermal-Resistant and

    The slow increase in apparent viscosity of the polymer with increase in salinity was interesting. The amphoteric polyacrylamide showed perfect temperature resistance in high-salinity solution. The viscosity retention reached 38.9% at 120 °C and was restored to 87.8% of its initial viscosity when temperature was decreased to room temperature.

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  • Fully Integrated Design of a Stretchable Solid‐State ...

    2019-9-6 · A polyacrylamide–“water-in-salt” electrolyte is developed, offering high ionic conductivity of 10 −3 to 10 −2 S cm −1 at room temperature and outstanding stretchability up to 300% of its original length. Finally, all these components are assembled into a solid-state lithium-ion full cell in thin-film configuration.

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  • The Nature of Polymer Plugging and a Wellbore

    Partially hydrolyzed polyacrylamide polymer is often used in enhanced oil recovery processes as a mobility control agent. It is generally accepted that mobility control is provided by the viscosity of a polyacrylamide solution as well as the permeability reduction caused by the polymer. ... During the design of the polymer coreflood, Amoco's ...

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  • 3D Meshlike Polyacrylamide Hydrogel as a Novel

    2019-12-17 · The molecular/structural design of polymeric binders has been pivotal in overcoming the challenges to improve the integrity of Si anode via strong interactions between active materials and binders. In this respect, the covalently crosslinked polyacrylamide (PAM) network, which effectively maintains its mechanical strength and shape, is ...

    Get Price
  • Injecting Polyacrylamide Into Gulf Coast Sands: The

    1996-8-1 · limited injection of polymer-assisted chemical slug into the Q Sand, and. full injection of polymer-assisted chemical slug into the 01-Sand. The second stage of the project was designed to evaluate whether injection of polyacrylamide was feasible in Gulf Coast sands.

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  • polyacrylamide | chemical compound | Britannica

    polyacrylamide, an acrylic resin that has the unique property of being soluble in water. It is employed in the treatment of industrial and municipal wastewater. Polyacrylamides are produced by the polymerization of acrylamide (C3H5NO), a compound obtained by the hydration of acrylonitrile.

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  • Polymer waterflooding design and implementation -

    polyacrylamide双语例句. 编辑. High polymers such as polyacrylamide etc. can effectively inhibit water sensitivity of clay.聚丙烯酰胺等高聚物可有效地抑制粘土的水敏性。. It was also found that the molecular weight and the dissolubility of polyacrylamide decreased with the increase of dehydration time.并且还发现 ...

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  • INFLUENCE OF POLYMER CHARGE TYPE AND DENSITY

    2015-6-9 · When conducting a polymer waterflood, a high-molecular-weight and viscosity-enhancing polymer is added to the water of the waterflood to decrease the mobility of the flood water and, as a consequence, improve the sweep efficiency of the waterflood (See Polymer waterflooding).This articles focuses on the design and field implementation of a polymer waterflood.

    Get Price
  • Design of a hybrid amine functionalized

    This work focuses on the development of a proof-of-concept optical sensor design that incorporates an amine-functionalized polyacrylamide hydrogel into a 1D porous silicon (PSi) photonic crystal. The PSi acts as both a template and a transducer capable of detecting morphological and dielectric changes in the incorporated hydrogel structure.

    Get Price
  • High-quality Polyacrylamide Chemical Polymer

    Getting started; Polyacrylamide Chemical Polymer; Polyacrylamide Chemical Polymer - China Manufacturers, Factory, Suppliers. With the 'Client-Oriented' business philosophy, a rigorous quality control system, advanced manufacturing equipment and a strong R&D team, we always provide high quality products, excellent services and competitive prices for Polyacrylamide Chemical Polymer, …

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  • Design of a hybrid amine functionalized

    2009-2-12 · Design of a hybrid amine functionalized polyacrylamide hydrogel-porous silicon optical sensor Design of a hybrid amine functionalized polyacrylamide hydrogel-porous silicon optical sensor Bonanno, Lisa M. 2009-02-12 00:00:00 This work focuses on the development of a proof-of-concept optical sensor design that incorporates an amine-functionalized polyacrylamide hydrogel into a 1D …

    Get Price
  • Development of a Polyacrylamide-Based Mud

    2020-10-30 · Comparative analysis of rheology of non-crosslinked and crosslinked polyacrylamide with other drilling fluids additives as well as proper mixing procedures are provided. The results achieved in this study are used as a strong tool to design a polymer-based mud with competitive rheological properties which achieved an 80% reduction in fluid loss ...

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  • Molecular Structure Characterization and Interaction

    2018-3-26 · The results of this work will enable the design of a pilot to be conducted during 2018 on a mature polymer-flooded area with more than 10 years of polymer-flooding (Buciak, 2013). Keywords: data quality , carbonyl group , experiment , chemical flooding methods , polymer , Upstream Oil & Gas , xanthan gum-polyacrylamide , molecular structure ...

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  • Experiment 1: Polymerization of acrylamide in water

    2020-12-30 · For example, 4 % monomer (4g/dl) solution has no polymer initially. At 50 % conversion, 2 g/dl of monomer and 2 g/dl of polymer coexist. At 100 % conversion, monomer has been completely depleted. Only 4 g/dl of polymer exists. Free radical polymerization of acrylamide: In the case of the polymerization of acrylamide to polyacrylamide, the ...

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  • Synthesis of a Novel Cationic Polyacrylamide and Its ...

    In the flocculation treatment of oilfield sewage, cationic polyacrylamide (CPAM), which was synthesized by the copolymerization of dimethyldiallylammonium chloride (DMDAAC), acrylamide(AM), and acrylic acid(AA), will react with the residue of oil displacement agent, causing the quick crimp of its linear-molecular-structure chain and deteriorating the flocculating effects.

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  • Evaluation of hydrophobically associated

    2004-1-20 · Fátima Rosa, João Bordado, Miguel Casquilho, Influence of polymerization conditions on the viscosity of polyacrylamide via experimental design, Journal of Applied Polymer Science, 10.1002/app.25089, 102, 6, (5719-5724), (2006).

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  • The use of cationic, anionic and nonionic

    Polyacrylamide (PAM) is a linear water soluble polymer, is a water-soluble polymer compounds used in wide varieties of one, PAM and its derivatives can be used as efficient flocculant, thickening agent, paper strengthening agent and liquid drag reduction agent, which is widely used in water treatment, paper, petroleum, coal, mining, metallurgy, geology, textile, construction and other ...

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  • INFLUENCE OF POLYMER CHARGE TYPE AND DENSITY

    2010-11-20 · Polymer adsorption on soils is a function of soil, polymer, and solvent (water) characteristics (Wallace et al., 1986; Aly and Letey, 1988; Shainberg et al., 1990). Adsorption of PAM on clay minerals varies with polymer charge type and density. For montmorill-onite, Aly …

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