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properties of polyacrylamides polymer application

  • Properties of Polyacrylamides - polymerdatabase.com

    2020-7-11 · Properties. Polyacylamides are high molecular weight water soluble or swellable polymers formed from acrylamide or its derivatives. Their glass transition temperature is well above room temperature (> 400 K). The only commercially important polyacrylamide is poly (2-propenamide) which is simply called polyacrylamide or PAM [-CH 2 CH (CONH 2 )-].

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  • Solution properties of hydrophobically modified ...

    2016-12-1 · Polyacrylamide (PAM) is one of the most widely used polymers in the chemical flooding (polymer flooding). However, there are many defects in its practical application, such as low temperature resistance, poor salt tolerance, and easy oxidative degradation. Also, PAM cannot emulsify the oil–water system, which limits its oil recovery capability.

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  • Solution properties of hydrophobically modified ...

    We tested nine hydrophobically modified polyacrylamides with molecular weights situated between 1.58 and 0.89 × 10 6 g/mol for enhanced oil recovery applications. Their solution properties were investigated in the distilled water, brine solution, formation water and sea water.

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  • Polyacrylamide - an overview | ScienceDirect Topics

    Polyacrylamide (PAA) Polyacrylamides are water-soluble synthetic linear polymers made of acrylamide or the combination of acrylamide and acrylic acid. Polyacrylamide finds applications in pulp and paper production, agriculture, food processing, mining, and as a flocculant in wastewater treatment.

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  • Properties of hydrophobically associating

    1993-8-1 · Effects of Monomer Feed Amounts on Solution Properties and Solution Morphologies for a Comb-like Ter-polymer. Journal of Macromolecular Science, Part B 2017, 56 (11-12) , 834-852.

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  • Evaluating the effect of molecular properties of ...

    2020-8-1 · Application of polyacrylamides as smoothing agents in copper electrowinning has previously been demonstrated along with understanding of activation of these polymers for use in the electrowinning process (Fabian et al., 2006, Fabian et al., 2007). There is a further need to investigate design of these molecules for effective performance beyond understanding the application of these polymers.

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  • Evaluation of solution and rheological properties for ...

    2017-9-1 · Polymer flooding by hydrophobically associated polyacrylamides (HAPAM) is a widely used technique through EOR technology. For successful application of these polymers, one should evaluate rheological and solution properties at simulated reservoir conditions as a function of polymer concentration, salinity, temperature and shear rate.

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  • Improving aggregate stability and hydraulic

    2021-2-1 · Improving soil properties, especially in arid and semiarid regions, is an urgent need for sustainable food production. This study aims to evaluate the effect of applying two types of anionic polyacrylamide polymers (PAMs) with different molecular weights on: (1) soil aggregate stability, (2) infiltration rate and (3) saturated hydraulic conductivity of sandy loam soil and introduce a novel ...

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  • Mechanical Properties and Flow Behavior of Polymers

    2019-4-12 · The mechanical properties and flow behavior in porous media of three different polymer systems including a hydrophobically modified acrylamide-based copolymer (HMSPAM), a partially hydrolyzed polyacrylamide (HPAM), and a polysaccharide (xanthan gum) were evaluated to establish their functional differentiation as mobility control agents in enhanced oil recovery (EOR).

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  • The Effect of Hyrolysis of Polyacrylamide on Solution ...

    Resistance factor curves display the effects of viscosity and polymer retention on mobility reduction properties. Information outlined in this paper is helpful in showing specific differences in hydrolyzed polyacrylamides that are a function of the degree of hydrolysis and are important in selecting the right polymer for a particular field application. polymer for a particular field application

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  • Properties of hydrophobically associating

    1993-8-1 · Effects of Monomer Feed Amounts on Solution Properties and Solution Morphologies for a Comb-like Ter-polymer. Journal of Macromolecular Science, Part B 2017, 56 (11-12) , 834-852.

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  • Synthesis and solution properties of poly(acrylamide ...

    2004-4-8 · Solubilities, aqueous solution viscosities and interfacial properties with air and oil of the copolymers were investigated. The influence of salt on the solution properties was also studied. Nature of hydrophobic sites and onset of hydrophobic association were studied by measuring the fluorescence of pyrene in polymer solutions.

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  • Comparative studies of rheological properties of ...

    2006-11-22 · Neetish Kumar Maurya, Prabhakar Kushwaha, Ajay Mandal, Studies on interfacial and rheological properties of water soluble polymer grafted nanoparticle for application in enhanced oil recovery, Journal of the Taiwan Institute of Chemical Engineers, 10.1016/j.jtice.2016.10.021, 70, …

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  • Polyacrylamide degradation and its implications in ...

    2018-9-7 · This requires the application of 1–20 kg of polymer per hectare (ha), 33,34 with typical MW of 1–20 × 10 6 Da 21,33,35 and concentrations less than 10 mg/L; 33 the high cost of PAM is a ...

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  • Synthesis, Characterization, and Flocculation

    Evaluation of the flow properties of dilute aqueous polymer solutions for enhanced oil recovery applications involves the determination of solution properties. In this research, the properties of the solutions of xanthan gum, sodium cellulose sulfate esters, polyacrylamides, and hydroxy ethyl cellulose and the injectabilities of these solutions ...

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  • Influences of polymer solution properties on flow in ...

    2019-5-26 · Hydrophobically associating polyacrylamides and their partially hydrolyzed derivatives prepared by post-modification. 2. Properties of non-hydrolyzed polymers in pure water and brine. Polymer 2005, 46 (22) , 9283-9295. DOI: 10.1016/j.polymer.2005.07.054.

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  • Influence of the Hydrophobe Structure on

    2020-5-6 · Acrylates are the esters, salts and conjugate bases of acrylic acid with its derivatives. They are made from acrylate monomer, which usually comprises of esters which contains vinyl groups, that is two carbon atoms that are double-bonded to each other, and directly attached to the carbonyl carbon of the ester group. Acrylates possess very diverse characteristic properties ranging from super ...

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  • Properties and Applications of Acrylates | IntechOpen

    2019-12-12 · The interaction between cellulose fibers in the presence of cationic polyacrylamide (CPAM) was analyzed by rheology as a function of polyelectrolyte concentration, charge density, and molecular weight. CPAM was found to strongly influence the yield stress of cellulose suspensions; low doses of CPAM increased the yield stress, but at higher concentrations the yield stress declined. The charge ...

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  • Effect of Cationic Polyacrylamides on the Interactions ...

    2020-7-30 · Field application rates varied from 30 kg ha −1 (0.001% BM) to 225 kg ha −1 (0.015% BM) and laboratory/greenhouse application rates from 0.05 to 2% BM. Even with variation in application method and rate there was an overall positive response of plants to SAP application. Superabsorbent polymer application can improve plant growth.

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  • properties of polyacrylamides polymerdatabase - New ...

    COMMERCIAL Polyacrylamides Major manufacturers of acrylamide polymers are BASF, SNF Floerger, Shangdong Tongli , and Kemira. ... application of carrier and plasticizer to improve in canada; ... Properties of Polyacrylamides - polymerdatabase.com ...

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  • properties of polyacrylamides polymerdatabase to

    Polymer Properties Database. Polyacrylamides Properties and Applications Polyacylamides are high molecular weight water soluble or swellable polymers formed from acrylamide or its derivatives. The only commercially important polyacrylamide is poly(2-propenamide) which is ... Application Polyacrylamide is used in the preparation of acrylamide ...

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  • Synthesis and solution properties of poly(acrylamide ...

    2004-4-8 · Solubilities, aqueous solution viscosities and interfacial properties with air and oil of the copolymers were investigated. The influence of salt on the solution properties was also studied. Nature of hydrophobic sites and onset of hydrophobic association were studied by measuring the fluorescence of pyrene in polymer solutions.

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  • Effect of polyacrylamides on the physical properties of ...

    2016-12-19 · The polymer PAM-1011 significantly reduced the steady-state infiltration rate in all sands, and it did this with relatively modest concentrations (< 10 ppm). The polyacrylamide PAM-135 was not effective for this purpose, which indicated that the chemical properties of the polymer (not investigated here) influenced its physical

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

    2018-9-7 · This requires the application of 1–20 kg of polymer per hectare (ha), 33,34 with typical MW of 1–20 × 10 6 Da 21,33,35 and concentrations less than 10 mg/L; 33 the high cost of PAM is a ...

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  • Synthesis and aqueous solution properties of ...

    2008-10-13 · Synthesis and aqueous solution properties of hydrophobically modified anionic acrylamide copolymers. ... Solution properties of hydrophobically modified polyacrylamides and their potential use for polymer flooding application, Egyptian Journal of Petroleum, 25, 4, (433) , (2016). ...

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  • Well-defined cationic polyacrylamides with dot

    Solution Properties and Application of Fluorocarbon-Modified Cationic Polyacrylamides LI Gang-hui1,SHEN Yi-ding1,LI Pei-zhi1,MU Fei-hu2 (1.College of Chemistry and Chemical Engineering,Shanxi University of Science & Technology,Xi'an 710021,China;2.Department of Water and Environment,APP Hainan Jinhai Pulp & Paper Co.Ltd,Yangpu 578101,China)

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  • Solution Properties and Application of Fluorocarbon ...

    2020-5-6 · Acrylates are the esters, salts and conjugate bases of acrylic acid with its derivatives. They are made from acrylate monomer, which usually comprises of esters which contains vinyl groups, that is two carbon atoms that are double-bonded to each other, and directly attached to the carbonyl carbon of the ester group. Acrylates possess very diverse characteristic properties ranging from super ...

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  • Properties and Applications of Acrylates | IntechOpen

    2020-7-30 · Field application rates varied from 30 kg ha −1 (0.001% BM) to 225 kg ha −1 (0.015% BM) and laboratory/greenhouse application rates from 0.05 to 2% BM. Even with variation in application method and rate there was an overall positive response of plants to SAP application. Superabsorbent polymer application can improve plant growth.

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  • Polymer Properties Database - polymerdatabase.com

    2020-7-27 · Thermophysical Properties Of Polymers How to Browse. This index is organized alphabetically. Click on the letters A to Z to the left to peruse the list of polymer classes, then click on the links below to view the thermophysical properties of a polymer. Polyacrylamides General Structure: Poly(acrylamide) Poly(N-isopropyl acrylamide)

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  • Comparative studies of rheological properties of ...

    2006-11-22 · Neetish Kumar Maurya, Prabhakar Kushwaha and Ajay Mandal, Studies on interfacial and rheological properties of water soluble polymer grafted nanoparticle for application in enhanced oil recovery, Journal of the Taiwan Institute of Chemical Engineers, 70, (319), (2017).

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  • Thermoresponsive properties of poly(N-isopropyl,N ...

    Poly(N-isopropyl,N-methylacrylamide) (PiPMAm) was synthesized to create a new family of thermoresponsive polyacrylamides using the B(C 6 F 5) 3-catalyzed group transfer polymerization (GTP) of N-isopropyl,N-methylacrylamide (iPMAm) with 1-methoxy-1-(triethylsiloxy)-2-methyl-1-propene (SKA Et) as the initiator.The B(C 6 F 5) 3-catalyzed group transfer copolymerization (GTcoP) of iPMAm and …

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  • Solution properties of poly(N‐isopropylacrylamide ...

    The results obtained by light scattering and viscosity measurements on unfractionated samples of poly(N‐isopropylacrylamide) dissolved in methanol and in water seem to show that the chain molecules assume different conformations in the two solvents.In methanol solutions at 25°C, poly(N‐isopropylacrylamide) (poly[1‐(N‐isopropylaminocarbonyl)ethylene]) molecules apparently …

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  • Characterization of viscoelastic properties of

    Polymer solutions have very important applications in the enhanced oil recovery due to their unique viscoelastic properties increasing microscale displacement efficiency. In this paper, the viscoelastic properties of partially hydrolyzed polyacrylamide (HPAM) solution have been investigated. Results show that the viscoelastic properties of HPAM increase with HPAM concentration increasing, and ...

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  • Dynamic study on water diffusivity of soil with super ...

    2013-7-8 · polymer application Yuguo Han ... dynamic change of soil physical properties with SAP application and conducted simulation, thereby providing a ... (ASC) and Polyacrylamides (PAM), were used. ASC, in the form of white particles with a diameter of less than 0.02 mm, is …

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  • Solution properties of poly(N-butyl methacrylamide ...

    Dilute solutions of poly(N-butyl methacrylamide) in methanol, dimethylformamide, and cyclohexanone were investigated by light scattering, osmometry and viscometry. From the intrinsic viscosity data, the characteristic ratio, C∞=9.9, was estimated. This value is compared with those for other N-substituted polyacrylamides. In this paper we report on the solution properties of poly (N-butyl ...

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  • Comparative Study of Physical Properties of In-Use ...

    2014-8-6 · 3.5. The Comparison of Physical Properties On the basis the research results above mentioned, unlike traditional polymer, multi-constitutes S-PAM is a new oil displacement polymer which is formed by multi-constitutes graft copolymerization with flexible hydrocarbon chain as the frame based on interactions of molecules.

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  • Preparation and Properties of N-Methylol, N

    2019-5-26 · PLLA in Solution: A Flexible Random-Coil or an Extended, Rather Rigid Helical Polymer; An IR, FR, and TPD Study on the Acidity of H-ZSM-5, Sulfated Zirconia, and Sulfated Zirconia−Titania Using Ammonia as the Probe Molecule

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  • Potential of Repeated Polymer Well Treatments | SPE ...

    1993-11-1 · The primary goal of polymer/silicate application was to combine the advantages and properties of the traditional (mainly polymer) technologies with the elimination of the difficulties that polymer) technologies with the elimination of the difficulties that limit their practical application.

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  • Effect of polyacrylamides on the physical properties of ...

    2016-12-19 · The polymer PAM-1011 significantly reduced the steady-state infiltration rate in all sands, and it did this with relatively modest concentrations (< 10 ppm). The polyacrylamide PAM-135 was not effective for this purpose, which indicated that the chemical properties of the polymer (not investigated here) influenced its physical

    Get Price
  • Well-defined cationic polyacrylamides with dot

    Polyacrylamide nonionic water-soluble polymer; CAS Number: 9003-05-8; Linear Formula: (C3H5NO)n; find Sigma-Aldrich-92560 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich

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  • Polyacrylamide nonionic water-soluble polymer | 9003

    2009-3-5 · Over the past few decades, extensive studies in academic and industrial laboratories have been focused on the development of polymers for use as associative thickeners, in many application areas including fluid drag in latex paints, coatings and cosmetics [1–25].Its properties in aqueous solution thickeners are attributed to the association of small hydrophobic units incorporated within a ...

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  • Synthesis, characterization and rheological properties

    2017-2-6 · The dilational rheological properties of hydrophobically modified polyacrylamide (HMPAM) or hydrolyzed polyacrylamide (HPAM) solutions without and with imidazolium surfactants ([C14-4-C14im]Br2 and [C14mim]Br) at the air/water surface were investigated using oscillating bubble measurements. The results obtained suggest that imidazolium surfactants interact with the polymer on the surface ...

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  • Surface Rheological Properties of Hydrophobically

    2021-7-11 · This study summarizes the main parameters acting on the stability of hydrolyzed polyacrylamides in brines containing divalent ions. For dilute solutions the critical hydrolysis degree (CHD) above which the polymer may be precipitated by Ca ions is …

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  • Stability of polyacrylamides in hard brines at elevated ...

    2014-8-6 · 3.5. The Comparison of Physical Properties On the basis the research results above mentioned, unlike traditional polymer, multi-constitutes S-PAM is a new oil displacement polymer which is formed by multi-constitutes graft copolymerization with flexible hydrocarbon chain as the frame based on interactions of molecules.

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  • Comparative Study of Physical Properties of In-Use ...

    2014-6-24 · The polymer used in this research was the Flopaam AN110 SH (HPAM) which is an ATBS-based polymer less sensitive to temperature and salinity. The molecular weight of the polymer was provided by the supplier as roughly 8-10 million g/mol with …

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  • Rheological Evaluation of HPAM fluids for EOR

    A systematic laboratory study of the various mechanisms possibly acting on the properties of flexible polymer solutions flowing through porous media was polymer solutions flowing through porous media was performed in order to interpret at a molecular level performed in order to interpret at a molecular level the phenomena previously observed, such as dilatant behavior, hydrodynamic retention ...

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  • Field Applications of Low Molecular-Weight Polymer ...

    2004-9-26 · The OCP system used in this study is based on a copolymer of acrylamide and t-butyl acrylate (PAtBA).The PatBA copolymer is crosslinked with polyethylene imine (PEI). Although crosslinked polyacrylamides have been widely used for water shutoff applications, the OCP system exibits interesting chemical and physical properties that can be attributed to the unique PAtBA interactions with PEI.

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  • Quantitative characterization of polyacrylamide–shale ...

    2017-6-22 · Interaction of polymer-containing injected fluids with shale is a widely studied phenomenon, but much is still unknown about the interaction of charged polyacrylamides such as anionic and cationic polyacrylamides with shale. The nature of interaction of charged polyacrylamides with shale is not well understood, especially from the perspective of assessing the potential for polyacrylamides to ...

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  • Rheological Properties of PHPA Polymer Support

    Synthetic polymer fluids are becoming a popular replacement for bentonite slurries to support excavations for deep foundation elements. However, the rheological properties of the polymer fluids used in excavation support have not been studied in detail, and there is currently confusion about the choice of mathematical models for this type of fluid.

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  • WO2018122443A1 - Glyoxylated polyacrylamide

    A cationic glyoxylated polyacrylamide polymer composition having improved storage stability for use in manufacture of paper, board or the like, which aqueous composition comprises an unreacted glyoxal in an amount of below 1 weight-%, a glyoxylated polyacrylamide polymer having a cationic charge density in the range of 0.8 - 1.8 meq/g of dry polymer in dry content of 6 - 13 % and a buffering acid.

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  • Controlling properties of thermogels by tuning critical ...

    Thermoresponsive hydrogel materials show promise as biomaterials as their properties can be widely tuned to fit engineering requirements for an array of important applications. ... (ethylene glycol) block and penda Polymer Chemistry Pioneering Investigators 2021 Jump to main content ... block and pendant N-substituted polyacrylamides can be ...

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  • Investigation of rheological properties of polymer ...

    Non-Newtonian shear viscosities were measured for 24 solutions of 3 different polyacrylamides. The polymer concentration varies from 50 to 2,500 ppm. Distilled water and 20,000-ppm NaCl solutions were used as solvents to afford comparison of the rheological properties between fresh and saline solutions.

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  • Lower Critical Solution Temperature in Aqueous

    1999-1-1 · The structures and properties of N-alkyl-substituted polyacrylamides (PAA) were studied by FT-IR spectroscopy. For N-alkyl-substituted PAA with lower critical solution temperature (LCST), a ...

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  • Polymer Applications in Agriculture - Bioline International

    Polymer Applications in Agriculture L. O. Ekebafe1, D. E. Ogbeifun2* and F. E. Okieimen2 1Department of Polymer Technology, Auchi Polytechnic, Auchi, Nigeria 2University of Benin, Centre for Biomaterials Research, Benin City, Nigeria (Received April 12, 2011; Accepted May 19, 2011)

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  • Super-Absorbent Polymer: A Review on the

    2020-9-15 · Super-Absorbent Polymer: A Review on the Characteristics and Application International Journal of Advanced Research in Chemical Science Page | 10 2.2. Physical Properties of Monomers The monomers useful for making superabsorbent polymer are water soluble monomer such as Acrylic

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  • Spectroscopic Investigation and Characterizations of

    Polymer blends have been obtained in the form of dimensionally stable and free standing films and their properties were characterized by different techniques. FTIR analysis and Raman spectroscopic analysis cleared the hydrogen bonding intermolecular interaction between –CONH2 groups in Poly Acrylamide (PAM) and C-O-C and –CH2OH group in Poly Ethylene Oxide (PEO).

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  • high molecular weight hydrolyzed polyacrylamides

    2003-3-3 · tion. Flocculation properties are correlated with polymer adsorption and particle zeta potential, and mechanisms of flocculation are examined as a function of the charge of the polymer and clay. ionic strength not only affects polymer-solvent interactions in the bulk and at the surface, but also adsorbs competitively on the solid surface [7,9].

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  • Charge Effects in the Adsorption of Polyacrylamides on ...

    2009-6-29 · However, Maitin demonstrated that if the mobility of the injected polymer formulation was low enough, the fresh water polymer bank could maintain its integrity during displacement of oil in a reservoir with saline brine. In concept, this idea could be extended to application of HPAM solutions in hot reservoirs with saline, high-hardness brines.

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  • Stability of Partially Hydrolyzed Polyacrylamides at ...

    2021-7-11 · @article{osti_6394949, title = {Stability of polyacrylamides in hard brines at elevated temperatures}, author = {Moradi-Araghi, A and Doe, P H}, abstractNote = {Laboratory data are used to show that commercial polyacrylamides hydrolyze to an equilibrium degree which depends on the temperature of hydrolysis, but is largely independent of the brine composition.

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  • Stability of polyacrylamides in hard brines at elevated ...

    2014-8-6 · 3.5. The Comparison of Physical Properties On the basis the research results above mentioned, unlike traditional polymer, multi-constitutes S-PAM is a new oil displacement polymer which is formed by multi-constitutes graft copolymerization with flexible hydrocarbon chain as the frame based on interactions of molecules.

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  • Comparative Study of Physical Properties of In-Use ...

    Thermal properties of the interpenetrating polymer networks derived from castor oil–isophorone diisocyanate–polyacrylamides. Journal of Applied Polymer Science, 1995. Swati Mohanty. Download PDF. ... Orissa, India; 'Computer Application Group, Regional Research Laboratory, Bhubaneswar-751 01 3, India SYNOPSIS Castor oil was reacted with ...

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  • (PDF) Polymers from renewable resources. VIII.

    A new type of sulfonate surfactant (Gn-SHBP) has been prepared by esterification and sulphonation. At 25°C, the surface activity, the effect of NaCl on solution CMC(critical micelle concentration), emulsibility and the tolerance to inorganic salts of sulfonate hyperbranched polymer surfactants were investigated by the methods of surface tension, measuring cylinder and visible-infrared ...

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  • Experiment: Can You Get a Systematic

    2021-2-12 · A key feature that controls the properties of a polymeric material is its architecture. Beyond the conventional linear polymer, architectures such as branched, cyclic, bottlebrush, star and block ...

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  • Study on Properties of Sulfonate Hyperbranched

    2016-7-25 · Superabsorbent polymer (SAP) efficiency in water absorption and release depends on soil properties and SAP type and concentration. Our objective was to examine the effects of soil texture, SAP concentration and properties on water absorption and release from …

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  • potential use of polyacrylamides (pam)

    POTENTIAL USE OF POLYACRYLAMIDE (PAM) IN AUSTRALIAN. POTENTIAL USE OF POLYACRYLAMIDE (PAM) IN AUSTRALIAN AGRICULTURE TO IMPROVE OFF AND ON-SITE ENVIRONMENTAL IMPACTS AND INFILTRATION MANAGEMENT Land & Water Resources Research and Development Corporation (LWRRDC) NPIRD Travel Fellowship Project No. UNE39 Polyacrylamides …

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  • Super-Absorbent Polymer: A Review on the

    2020-9-15 · Super-Absorbent Polymer: A Review on the Characteristics and Application International Journal of Advanced Research in Chemical Science Page | 10 2.2. Physical Properties of Monomers The monomers useful for making superabsorbent polymer are water soluble monomer such as Acrylic

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  • Polymer Flooding | IntechOpen

    2020-10-3 · polymer development, synthesis and molecular design which intrinsically affect the solubility, thermo‐ responsiveness, hydrophobicity of the substituent and amide groups, and polymer hydration. We also use polyacrylamides with specific primary structures that are …

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  • CCT Case Study - Cation Friendly Anionic Polymer Use

    Johnson MS, Veltkamp CJ (1985) Structure and functioning of water-storing agricultural polyacrylamides. Journal of the Science of Food and Agriculture 36, 789–793. Nelson SD (1997) Krilium: the famous soil conditioner of the 1950s. In ‘Handbook of soil conditioners: Substances that enhance the physical properties of soil’.

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  • CSIRO PUBLISHING | Animal Production Science

    2017-3-30 · APPLICATION. OF GELS POLYMER WHAT IS GEL. Gel is solid, jelly like material. Gels are defined as a substantially dilute cross-linked system.Gels are mostly liquid , they behave like solids due to a three-dimensional cross-linked network within the liquid, Gel is Nonfluid colloidal network or polymer network. Polymer gels consist of a cross-linked polymer network inflated with a solvent such as ...

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  • Application of Gels Polymer | Gel | Chemical

    The hydrophobically modified polyacrylamides (PAM) were synthesized using butyl acrylate (BA) and methyl methacrylate (MMA) as hydrophobic monomers, via water solution free radical copolymerization. The influences of hydrophobic monomer content on the molecular weight, insoluble fraction and dissolution rate of PAM were investigated. The flocculation effects of PAMs for two kinds of tailing ...

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  • Flocculation Effects of Hydrophobically Modified ...

    A new type of sulfonate surfactant (Gn-SHBP) has been prepared by esterification and sulphonation. At 25°C, the surface activity, the effect of NaCl on solution CMC(critical micelle concentration), emulsibility and the tolerance to inorganic salts of sulfonate hyperbranched polymer surfactants were investigated by the methods of surface tension, measuring cylinder and visible-infrared ...

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  • Study on Properties of Sulfonate Hyperbranched

    Introduction: Polyethylene glycol (PEG) is a polymer of choice in drug delivery systems. This USFDA-approved polymer is popular due to its tunable properties and well-established safety profile: prime requisites considered during the selection of any excipient in formulation development.

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  • Polyethylene glycol (PEG): a versatile polymer for ...

    Polymer solutions were tested at 5 wt% polymer for rheological experiments. SAOS measurements below the LCST of all polymers were performed at 25 °C. Measurements above the LCST of all polymers were performed at 78 °C unless otherwise specified. SAOS temperature ramps were performed at a frequency of 6 rad s −1 with a ramp rate of 2 °C min ...

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