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polyacrylamide hydrolysis using method

  • Method of hydrolyzing polyacrylamide - Nalco Chemical

    This invention concerns a method of hydrolyzing polyacrylamide to provide a polymer which has been found to be useful in thickening and flocculation applications. In particular, aqueous solutions of the hydrolyzed polyacrylamide of this invention have been found to provide excellent results in the thickening and dewatering of industrial wastes, sewage wastes, and clarifications of turbid …

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  • Method of hydrolyzing polyacrylamide - Nalco Chemical

    Polyacrylamide dispersed in a polymeric latex may be hydrolyzed by the use of an alkali stable organic surfactant followed by the reaction of the polyacrylamide with …

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  • Theoretical studies of hydrolysis and stability of ...

    2015-11-1 · Thermal stability of water-soluble polyacrylamide (PAM) and partially hydrolyzed polyacrylamide (HPAM) polymers under various solution conditions have been studied utilizing Quantum Mechanics Density Functional Theory (DFT) computational modeling method. The hydrolysis reaction of the amide group (AM) to form acrylic acid (AA) is significantly affected by the pH of solution and the presence of cationic species such as Ca 2+. Without catalyzed, PAM is thermally stable with …

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  • Acrylamide copolymers: A review of methods for the ...

    1994-12-1 · Attia and Rubio (1975) reported a turbidimetric method for acrylamide polymers using tannic acid in 1 molar sodium chloride. The method is restricted to unhydrolyzed polyacrylamide. The method has a good detection limit, 0.1 rag/l, has a range of 0.1 to 10 mg 1, but produces a linear calibration curve to only 2 mg 1.

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  • [PDF] Alkaline Hydrolysis of Polyacrylamide and Study on ...

    Polyacrylamide is prepared by free radical polymerization mechanism in aqueous solution, using ammonium persulphate as initiator . Poly (acryl- amide-co-sodium acrylate) or partially hydrolyzed polyacrylamide (PI-IPA) with different degrees of hydrolysis was obtained by alkaline hydrolysis of polyacrylamide using sodium hydroxide as hydrolyzing ...

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  • Determination of the concentrations of polyacrylamide-type ...

    In order to improve correct the accuracy of polymer concentration results caused by the hydrolysis reaction of acrylamide groups that happen in the long time polymer flooding process especially at high temperature, infrared (IR) spectroscopy analysis was introduced to identify the hydrolysis degree based on the absorption peaks at 1568 cm −1 and 1671 cm −1, representing acrylamide …

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  • Thermal gelation of partially hydrolysed polyacrylamide ...

    2019-12-1 · In this paper, a statistical analysis on the thermal gelation of well characterized reactants namely partially hydrolysed polyacrylamide (PHPA) (Mw = 5.1 million Daltons and hydrolysis degree = 6%) and polyethylenimine (PEI) (Mw = 19.2 kilo Daltons and branching degree = 59%), was conducted using response surface methodology (RSM).

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  • Measurement of polyacrylamide polymers in water and ...

    2014-6-1 · This study presents a method for quantification of polyacrylamide concentration using an in-line UV–vis spectrophotometer that can generate real-time data. Absorbance spectra of seven polymers were established in the wavelength range of 191.5–750 nm and the highest absorbance was recorded at 191.5 nm for all polymers.

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  • A Study on Mass Concentration Determination and Property ...

    2011-2-5 · The produced polyacrylamides from three different polymer flooding blocks have been determined using this new method. The results show that the relative molecular mass of produced polyacrylamide decreased greatly and its degree of hydrolysis increased obviously. The reasons and differences have been also analyzed.

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  • Polyacrylamide degradation and its implications in ...

    2018-9-7 · PAM used as a flocculant in water treatment or sludge dewatering is disposed in high-solid biogas digestors or landfills. 94 Although PAM is typically considered to be relatively recalcitrant to ...

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  • Hydrolysis of cationic polyacrylamide and its effect on ...

    2021-7-7 · Hydrolysis of Cationic Polyacrylamide and its Effect on Flocculation of Ground Calcium Carbonate. ... were used to quantify the amount of choline chloride by the external standard method. Choline chloride was prepared at a concentration of 1,000 ppm, and then diluted to 500 ppm, 100 ppm, and 10 ppm to obtain a calibration curve. Six cation ...

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  • Polyacrylamide. I. Polymer content and hydrolysis level ...

    A method of determining the degree of hydrolysis by potentiometric titration of polyacrylamide (PAA) with HCl and NaOH was developed. From the titration curves and the control of the degree of purity it is possible to calculate the level of hydrolysis and the quantity of pure acid contained in the PAA of a commercial product.

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  • CiteSeerX — Alkaline hydrolysis of polyacrylamide and ...

    Abstract. Polyacrylamide is prepared by free radical polymerization mechanism in aqueous solution, using ammonium persulphate as initiator. Poly(acryl-amide-co-sodium acrylate) or partially hydrolyzed polyacrylamide (PI-IPA) with different degrees of hydrolysis was obtained by alkaline hydrolysis of polyacrylamide using sodium hydroxide as hydrolyzing agent.

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  • [PDF] Alkaline Hydrolysis of Polyacrylamide and Study on ...

    Polyacrylamide is prepared by free radical polymerization mechanism in aqueous solution, using ammonium persulphate as initiator . Poly(acryl- amide-co-sodium acrylate) or partially hydrolyzed polyacrylamide (PI-IPA) with different degrees of hydrolysis was obtained by alkaline hydrolysis of polyacrylamide using sodium hydroxide as hydrolyzing agent .

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  • Polyacrylamide gel electrophoresis as a method for ...

    Abstract The activity of proteinases is demonstrable through hydrolysis, at the surface of polyacrylamide gel, of specific amino acid substrates obtained by coupling naphthylamine to a diazonium salt. The formation of an insoluble orange-red azo dye indicates the proteolytic activity. There is no interference by other proteins or enzymes with a different cleavage specificity.

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  • Polyacrylamide degradation and its implications in ...

    2018-9-7 · Dai, X. et al. Waste-activated sludge fermentation for polyacrylamide biodegradation improved by anaerobic hydrolysis and key microorganisms involved in biological polyacrylamide removal. Sci. Rep ...

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  • Fast Turbidimetric Assay for Analyzing the Enzymatic ...

    2018-11-15 · A final polyacrylamide concentration of 4.5% was used, providing an average pore size of 200 nm, which is similar to that described previously using 1% agarose gel. 10, 13, 14 Since the 2PET particles had an average diameter of 320 nm 8, they were completely immobilized in the hydrogel, while the enzymes and the hydrolysis products were allowed ...

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  • Use of vapor-phase acid hydrolysis for mass spectrometric ...

    A method for mass spectrometric peptide mapping was developed, based on hydrolysis of a solid protein by acid vapor followed by mass spectrometric analysis of the cleavage products. The method is applicable to lyophilized samples as well as proteins present in gels after separation by SDS-PAGE. The …

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  • Thermal Evaluation, Rheological Properties and ...

    2010-3-26 · To create a three-dimensional gradient of proteins, assembling different microspheres containing proteins with a gradient mixing ratio and mixing different solutions by using a gradient maker normally used to make polyacrylamide gels for electrophoresis [15,16,17], have been investigated. However, there still remain the complex processes in ...

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  • Polyacrylamide. I. Polymer content and hydrolysis level ...

    A method of determining the degree of hydrolysis by potentiometric titration of polyacrylamide (PAA) with HCl and NaOH was developed. From the titration curves and the control of the degree of purity it is possible to calculate the level of hydrolysis and the quantity of pure acid contained in the PAA of a commercial product.

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  • Acid hydrolysis reaction of polyacrylamide and its ...

    2015-8-1 · Polyacrylamide PAM acidic hydrolysis, in addition to the AM structure produced by hydrolysis of carboxyl, but also prone to imidization. This reaction increases with the increase of the acidity of the ring, and even becomes the main reaction in the acid condition. In the case of PH 4, 3, 10% of the acyl groups were generated at 40, 6 h, 10% h ...

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  • CiteSeerX — Alkaline hydrolysis of polyacrylamide and ...

    Abstract. Polyacrylamide is prepared by free radical polymerization mechanism in aqueous solution, using ammonium persulphate as initiator. Poly(acryl-amide-co-sodium acrylate) or partially hydrolyzed polyacrylamide (PI-IPA) with different degrees of hydrolysis was obtained by alkaline hydrolysis of polyacrylamide using sodium hydroxide as hydrolyzing agent.

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  • Polyacrylamide gel electrophoresis as a method for ...

    Abstract The activity of proteinases is demonstrable through hydrolysis, at the surface of polyacrylamide gel, of specific amino acid substrates obtained by coupling naphthylamine to a diazonium salt. The formation of an insoluble orange-red azo dye indicates the proteolytic activity. There is no interference by other proteins or enzymes with a different cleavage specificity.

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  • Hydrolysis and thermal stability of partially hydrolyzed ...

    Partially hydrolyzed polyacrylamide (HPAM) is the water‐soluble polymer most often used in flooding applications in the petroleum industry. However, in aqueous solutions at high temperatures, HPAM undergoes hydrolysis of the lateral amide groups, and the presence of salts in the solution can lead to precipitation of this polymer.

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  • Rheological study of partially hydrolyzed polyacrylamide ...

    2013-2-11 · In the partially hydrolyzed polyacrylamide structure, the amide group (CONH 2) is converted to hydrophilic carboxylate group (COONa +) by hydrolysis reaction, and further cross-linking agent builds up a complex network with carboxylate groups of polymer and forms a three-dimensional gel network structure.. The gel point is defined as the time needed to reach the …

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  • A Novel Method for Polyacrylamide Gel Preparation Using N ...

    2021-2-24 · Mechanical stimulation by the extracellular matrix (ECM) controls physiological and pathological cellular responses, such as stem cell differentiation, organogenesis, and tumor progression. Polyacrylamide (PA) gels have been widely used to study cell-ECM mechanical interactions. Typically, sulfosuccinimidyl 6-(4′-azido-2′-nitrophenylamino)hexanoate (sulfo …

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  • Polyacrylamide Gel-Entrapped Maltase: An Excellent Design ...

    2018-11-15 · A final polyacrylamide concentration of 4.5% was used, providing an average pore size of 200 nm, which is similar to that described previously using 1% agarose gel. 10, 13, 14 Since the 2PET particles had an average diameter of 320 nm 8, they were completely immobilized in the hydrogel, while the enzymes and the hydrolysis products were allowed ...

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  • Fast Turbidimetric Assay for Analyzing the Enzymatic ...

    Enzymatic hydrolysis: a method in alleviating legume allergenicity. Kasera R(1), Singh AB(1), Lavasa S(2), Prasad KN(3), Arora N(4). Author information: (1)Allergy and Immunology Section, CSIR-Institute of Genomics and Integrative Biology, Delhi 110007, India. (2)USLavasa Medical and Research Center, Chandigarh 160015, India.

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  • Waste-Activated Sludge Fermentation for Polyacrylamide ...

    2015-7-6 · The total amount of amide-N (i.e., anaerobic hydrolysis of PAM) was measured using the starch-cadmium iodide colorimetry method 40,41. The measurement of the anaerobic hydrolysis …

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  • Rheological study of partially hydrolyzed polyacrylamide ...

    2013-2-11 · In the partially hydrolyzed polyacrylamide structure, the amide group (CONH 2) is converted to hydrophilic carboxylate group (COONa +) by hydrolysis reaction, and further cross-linking agent builds up a complex network with carboxylate groups of polymer and forms a three-dimensional gel network structure.. The gel point is defined as the time needed to reach the …

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  • Hydrolysis and thermal stability of partially hydrolyzed ...

    Partially hydrolyzed polyacrylamide (HPAM) is the water‐soluble polymer most often used in flooding applications in the petroleum industry. However, in aqueous solutions at high temperatures, HPAM undergoes hydrolysis of the lateral amide groups, and the presence of salts in the solution can lead to precipitation of this polymer.

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  • Waste-Activated Sludge Fermentation for Polyacrylamide ...

    The total amount of amide-N (i.e., anaerobic hydrolysis of PAM) was measured using the starch-cadmium iodide colorimetry method 40,41. The measurement of the anaerobic hydrolysis of PAM was performed as follows: the amide groups of PAM were first N-brominated with bromine to form N-bromo amide, and the excess bromine was removed from the ...

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  • Improving the Viscosity of Partially Hydrolyzed ...

    Further study revealed that the hydrolysis of polyacrylamide by alkaline solution significantly increased the viscosity of 1000 ppm solution from 1.5 to 145.40 cP at room temperature, which is comparable to one of the commercial products. These results showed that the simple synthesis and hydrolysis method could be effectively used to produce ...

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  • US3968093A - Process for producing partially hydrolyzed ...

    A process for producing a partially hydrolyzed polyacrylamide which has a high molecular weight and high water solubility and can be suitably used as a flocculant for water treatment and a size for paper manufacture comprising polymerizing an aqueous solution of an acrylamide monomer in the presence of an alkali metal hydroxide such as sodium hydroxide and boric acid, whereby a partial ...

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  • US5571862A - Stabilized polyacrylamide emulsions and ...

    Dispersions of polyacrylamide particles are formed and treated with a caustic material to hydrolyze the polymer to form anionic acrylamide polymers. A preferred technique for forming these products comprises the formation of a stabilized water-in-oil emulsion of aqueous acrylamide monomer, polymerizing the monomer, reacting the polymer emulsion thus formed with a hydrolysis agent …

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  • Preparation of κ-carra-oligosaccharides with microwave ...

    A rapid method of microwave assisted acid hydrolysis was established to prepare κ-carra-oligosaccharides. The optimal hydrolysis condition was determined by an orthogonal test. The degree of polymerization (DP) of oligosaccharides was detected by high performance thin layer chromatography (HPTLC) and polyacrylamide gel electrophoresis (PAGE).

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  • CN1865299A - Super high molecular weight

    CN1865299A CN 200510070796 CN200510070796A CN1865299A CN 1865299 A CN1865299 A CN 1865299A CN 200510070796 CN200510070796 CN 200510070796 CN 200510070796 A CN200510070796 A CN 200510070796A CN 1865299 A CN1865299 A CN 1865299A Authority CN China Prior art keywords molecular weight hydrolysis tablets press super polyacrylamide Prior art …

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  • Polyacrylamide precast gels for electrophoresis, process ...

    Polyacrylamide precast gels for electrophoresis, process for producing the same and electroporesis method by using the gels . United States Patent 6726821 . Abstract: A precast acrylamide electrophoresis gel is disclosed, which includes a gel buffer solution containing either Tris and glycine or Tris, glycine and any one or more than two of ...

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  • Hydrolysis and Precipitation of Polyacrylamides in Hard ...

    At greater than 20 ppm hardnesslevels, polyacrylamide solutions pass through a sharp cloud point as theirtemperature is raised. This cloud-point temperature depends primarily on thehardness level of the brine and the degree of hydrolysis of the polymer, withlesser dependency on polymer molecular weight and polymer concentration.

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  • Synthesis and evaluation of partially hydrolysed ...

    2016-7-20 · of hydrolysis .of the PHPA was determined by es-timating the nitrogen content by Kjeldahl method. The characteristics of PHPA are presented in Table 1. Molecular weight distribution of polyacrylamide was studied by fractionation method. About 10 g of polyacrylamide was dissolved in 500 mL dis-tilled water to make a 2% solution. It was then

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  • Automated and Manual Methods for the Determination of ...

    The analysis of polyacrylamide in water has historically been based on one of three principles: hydrolysis, with detection of the resulting ammonia; the starch iodide method (redox titration); and turbidimetry. Of these, the first two suffer interferences from background nitrogen compounds and redox processes, respectively.

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  • A method of obtaining a high molecular weight partially ...

    The closest is a method for partially hydrolyzed polyacrylamide by adiabatic sing acids when a molar ratio of from 0.8 to 1.3 and the initial temperature 0 50 o C and subsequent heating of the resulting polymer in air at a temperature of 75 to 100 o C for 4 to 20 hours, This method also has a number of disadvantages:

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  • Acid hydrolysis reaction of polyacrylamide and its ...

    2015-8-1 · Polyacrylamide PAM acidic hydrolysis, in addition to the AM structure produced by hydrolysis of carboxyl, but also prone to imidization. This reaction increases with the increase of the acidity of the ring, and even becomes the main reaction in the acid condition. In the case of PH 4, 3, 10% of the acyl groups were generated at 40, 6 h, 10% h ...

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  • Hydrolysis-induced large swelling of polyacrylamide ...

    Polyacrylamide (PAAm) hydrogels are widely used and studied. Their feature of hydrolysis is often ignored. When PAAm hydrogels are stored under alkaline conditions, they can undergo a hydrolysis reaction, which changes them from neutral hydrogels to polyelectrolyte hydrogels, resulting in significant volumet

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  • Mechanism of Polyacrylamide Gel Syneresis Determined by

    We have investigated the changes in hydrolysis of polyacrylamide polymers and gels crosslinked with trivalent chromium with C-13 NMR. This method is a direct way to correlate changes in the gel composition with effectiveness under severe conditions. The carbonyl carbon of the amide group has a sharp resonance at 181 ppm.

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  • Improving the Viscosity of Partially Hydrolyzed ...

    Further study revealed that the hydrolysis of polyacrylamide by alkaline solution significantly increased the viscosity of 1000 ppm solution from 1.5 to 145.40 cP at room temperature, which is comparable to one of the commercial products. These results showed that the simple synthesis and hydrolysis method could be effectively used to produce ...

    Get Price
  • Determination of Water-Soluble Polymers Containing

    A rapid method for determining less than 100 ppm of these materials in surface water and oilfield brine is described here.Turbidimetric techniques using a quaternary ammonium cation (Hyamine 1622 TM) or the hypochlorite ion as precipitants were applied to both polyacrylic acid and hydrolyzed polyacrylamide polyacrylic acid and hydrolyzed ...

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  • Polyacrylamide. I. Polymer content and hydrolysis level ...

    1980-1-1 · Polyacrylamide. I. Polymer content and hydrolysis level determination by potentiometric titration Polyacrylamide. I. Polymer content and hydrolysis level determination by potentiometric titration St. Kenyeres, J.; Ursu, V. 1980-01-01 00:00:00 A method of determining the degree of hydrolysis by potentiometric titration of polyacrylamide (PAA) with HCl and NaOH was developed.

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  • Polyacrylamide gel electrophoresis as a method for ...

    1973-9-28 · 1. Clin Chim Acta. 1973 Sep 28;48(1):97-103. Polyacrylamide gel electrophoresis as a method for differentiation and quantitation of serum enzymes hydrolysing phosphate monoesters.

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  • Alkaline hydrolysis of polyacrylamide - Nagase - 1965 ...

    Polyacrylamide has been reported to show an abnormal behavior on alkaline hydrolysis, that is, the reaction rate is quite high at the initial stage and decreases rapidly with increasing conversion. This phenomenon has been attributed to the polymer structure.

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  • Process for producing partially hydrolyzed polyacrylamide ...

    The viscosity of the aqueous solution of the partially hydrolyzed polyacrylamide varies depending on the hydrolysis percentage, but with a polymer having a hydrolysis percentage of, for example, about 10 mol percent, the viscosity at 25°C of an aqueous solution of 0.1% by weight of the polymer is higher than about 100 cps (as measured using a ...

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  • A qualitative screening procedure for the detection of ...

    hydrolysis by bacteria, using sodium dodecyl sulphate polyacrylamide gel electrophoresis BY SUSAN H. A. HIL ANL D MICHAEL J. GASSON AFRC Institute Food of Research, Reading Laboratory (University of Reading), Shinfield, Reading RG2 9 AT, UK (Received 29 January 1986 and accepted for publication 28 April 1986) SUMMAEY.

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  • Rheological study of partially hydrolyzed polyacrylamide ...

    2013-2-11 · In the partially hydrolyzed polyacrylamide structure, the amide group (CONH 2) is converted to hydrophilic carboxylate group (COONa +) by hydrolysis reaction, and further cross-linking agent builds up a complex network with carboxylate groups of polymer and forms a three-dimensional gel network structure.. The gel point is defined as the time needed to reach the …

    Get Price
  • US5571862A - Stabilized polyacrylamide emulsions and ...

    Dispersions of polyacrylamide particles are formed and treated with a caustic material to hydrolyze the polymer to form anionic acrylamide polymers. A preferred technique for forming these products comprises the formation of a stabilized water-in-oil emulsion of aqueous acrylamide monomer, polymerizing the monomer, reacting the polymer emulsion thus formed with a hydrolysis agent …

    Get Price
  • Determination of Water-Soluble Polymers Containing

    A rapid method for determining less than 100 ppm of these materials in surface water and oilfield brine is described here.Turbidimetric techniques using a quaternary ammonium cation (Hyamine 1622 TM) or the hypochlorite ion as precipitants were applied to both polyacrylic acid and hydrolyzed polyacrylamide polyacrylic acid and hydrolyzed ...

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  • Degradable polyacrylamide gel - Case Western Reserve ...

    The hydrolysis of the acid-degradable polyacrylamide gel bands were stopped by adding the equivalent volume of slightly basic TE buffer (50 mM Tris-HCl, 5 mM EDTA; pH 8) to the FPW hydrolysis buffer. The released nucleic acids were further purified from the hydrolyzed polyacrylamide matrix using a DE52 anion exchange resin.

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  • Synthesis and Characterization of Biodegradable Starch ...

    2012-6-7 · The method has been described in detail previously [24–26]. The percentages of graft polymer, free polymer and soluble starch were determined through separation by washing using distilled water, and acid hydrolysis using HCl . Characterization Thermal Gravimetric Analysis (TGA)

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  • A polymer hydrolysis model and its application in chemical ...

    Polymer flooding is a commercial enhanced oil recovery (EOR) method used to increase the sweep efficiency of water floods. Hydrolyzed polyacrylamide (HPAM), a synthetic commercial polymer, is widely used in commercial polymer floods and it is also used for mobility control of chemical floods using surfactants such as surfactant-polymer flooding and alkaline-surfactant-polymer flooding.

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  • Acrylamide Optical Sensor Based on Hydrolysis Using ...

    2017-12-5 · Acrylamide Optical Sensor Based on Hydrolysis Using Bacillus sp. ... HONG, MUSA AHMAD*, LEE YOOK HENG, NORZILA KUSNIN & MOHD YUNUS ABDUL SHUKOR ABSTRACT In this work, a new optical screening method for acrylamide was developed. Bacterial Bacillus sp. strain ZK 34 was used to ... As polyacrylamide is used for drinking

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  • A direct method to visualise the aryl acylamidase activity ...

    2000-12-20 · A novel method to visualise the aryl acylamidase activity on cholinesterases in polyacrylamide gels has been developed. ... EC 3.1.1.7) specifically catalyses the hydrolysis of acetylcholine and is subjected to marked inhibition by its own natural substrate. ... a method to visualise the AAA activity on ChEs in polyacrylamide gels using human ...

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  • POLYACRYLAMIDE GEL ELECTROPHORESIS OF HUMIC AND

    2016-6-5 · POLYACRYLAMIDE GEL ELECTROPHORESIS OF HUMIC AND FULVIC ACIDS AFTER ACID HYDROLYSIS ... the advantages and disadvantages of using acid hydrolysis should be carefully considered before this treatment is carried out. ... Acid hydrolysis has been considered a method necessary for the study of the core of HS, and is widely ...

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  • The Behavior of Partially Hydrolyzed Polyacrylamide ...

    However, there is still a lack of information defining all the physical variables that control polymer solution behavior. This paper concerns one class of polymers that apparently is being tested widely as an additive for injection water; it is partially hydrolyzed polyacrylamide.

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  • Modeling of Partially Hydrolyzed Polyacrylamide-Hexamine ...

    The hexamine on hydrolysis yields formaldehyde which then combines with hydroquinone and form 2,3,5,6-tetramethylol hydroquinone. Further, partially hydrolyzed polyacrylamide reacts with 2,3,5,6-tetramethylol hydroquinone and forms three dimensional networks of polymer gel, the different steps of which are as follows. Step I.

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  • Hydrolysis of Cationic Polyacrylamide and its Effect on ...

    DOI: 10.15376/BIORES.13.3.5303-5318 Corpus ID: 104183173. Hydrolysis of Cationic Polyacrylamide and its Effect on Flocculation of Ground Calcium Carbonate @article{Seo2018HydrolysisOC, title={Hydrolysis of Cationic Polyacrylamide and its Effect on Flocculation of Ground Calcium Carbonate}, author={Dongil Seo and Kyudeok Oh and Wanhee Im …

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  • hydrolysis 15% polyacrylamide chemicals usage in

    2021-7-8 · Specific features of the hydrolysis of polyacrylamide and its derivatives under various conditions are characterized. The most efficient procedures for performing hydrolysis in dilute and concentrated aqueous solutions and suspensions, as well as during acrylamide polymerization in aqueous solutions and emulsions, are discussed ...

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  • CN1232548C - Method for preparing low molecular weight ...

    The present invention discloses a preparation method of low-molecular weight polyacrylamide, which uses an aqueous solution polymerization method. Isopropanol is used as a chain transfer agent and heat transfer solvent and disodium edta (EDTA) is used as a stabilizing agent to carry out the polymerization reaction at the temperature of 80 to 85 DEG C by continuously dropping …

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  • Characterization of casein hydrolysates derived from ...

    2013-4-4 · Casein is the main proteinaceous component of milk and has made us interest due to its wide applications in the food, drug, and cosmetic industries as well as to its importance as an investigation material for elucidating essential questions regarding the protein chemistry. Enzymatic hydrolysis is an important method commonly used in the modification of protein structure in …

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