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(PDF) Simultaneous thermal analysis of cationic, nonionic and anionic polyacrylamide | Wiebke Baille – Academia.edu

Simultaneous thermal analysis of cationic, nonionic and anionic polyacrylamide . × Close Log In Log In with Facebook Log In with Google Sign Up with Apple or Email: Password

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Simultaneous thermal analysis of cationic, nonionic and anionic polyacrylamide

1/12/2019 · Polyacrylamide (PAM) and its derivatives are the most commercially available water-soluble polymers and are frequently used for the production of clay-polymer composites. The characterization of their thermal behavior and decomposition was

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Synthesis and application of nonionic polyacrylamide with controlled molecular weight for fracturing in low permeability oil reservoirs, Journal

15/3/2016 · Nonionic polyacrylamide (NPAM) with controlled molecular weight was successfully synthesized as a gel fracturing fluid by aqueous solution polymerization. The effects of the monomer concentration, initiator concentration, reaction time, feeding

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A cationic polyacrylamide dispersion synthesis by dispersion polymerization in aqueous solution :: BioResources

FTIR spectrum of CPAM dispersion The FTIR spectrum of the laboratory-produced CPAM dispersion is shown in Fig. 4. The peak at 1651.47 cm -1 is attributed to the carbonyl(C=O) of the amide group, the peak at 1733.48 cm -1 is due to the

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Synthesis, characterization and evaluation of polyacrylamide graft starch/clay nanocomposite hydrogel system for enhanced oil recovery

7/9/2017 · FTIR analyses were utilized to clarify grafting of starch onto polyacrylamide and MMT. The FTIR spectra of MMT, polyacrylamide (PAAm), starch (St) and PAAm-g-St/MMT are shown in Fig. 4 . The characteristic vibrational bands of Na-MMT at 3468 and

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(PDF) Polyacrylamide for wastewater treatment

Abstract. Polyacrylamide and its co-polymers are used as flocculants or coagulants in industrial wastewater treatment .Homo-polymer is used in this application and can be either nonionic, cationic

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Aggregation of nickel laterite ore particles using polyacrylamide homo and copolymers with different charge densities

1/8/2017 · Polyacrylamide is nominally a nonionic uncharged polymer (Fig. 1, top). However, anionic copolymers of polyacrylamide are often used in industry ( Fig. 1 , bottom). The ratio of the number of acrylic monomer units to the total number of acrylic

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Simultaneous thermal analysis of cationic, nonionic and anionic polyacrylamide: Heliyon

12/12/2019 · Polyacrylamide (PAM) and its derivatives are the most commercially available water-soluble polymers and are frequently used for the production of clay-polymer composites. Stoichiometric calculations showed that PAM S,τ40 Cl and PAM S decomposed

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Reduced adsorption of polyacrylamide‐based fracturing fluid on shale rock using urea – Li – 2018 – Energy Science & Engineering – Wiley

The current practice is to reduce the molecular weight of PAM before flowing back. It is believed that a low molecular weight chain is fit to recover the permeability of shale reservoirs. 26-28 As a matter of fact, after being flowed back, there

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Fabrication and Application of Cationic Polyacrylamide

Therefore, the production of CPAM with high intrinsic viscosity and cationicity is important for an enhanced application performance. Discover the world's research 20+ million members

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