rheology of hydrophobically modified polyacrylamide co

Rheology of Hydrophobically Modified Polyacrylamide-co …

Constant shear and shear dependent viscosity measurements are reported in aqueous systems of co- and terpolymers of acrylamide (AM), N-n-alkylacrylamide (C10, C12, and C14 alkyl groups), and acrylic acid (AA) with added anionic surfactant sodium dodecyl sulfate (SDS). The results are presented as three-dimensional plots of viscosity vs surfactant concentration and pH at constant shear rate or …,Rheology of hydrophobically modified polyacrylamide-co … ,Rheology of hydrophobically modified polyacrylamide-co-poly(acrylic acid) on addition of surfactant and variation of solution pH Langmuir . 2004 Jun 8;20(12):4859-66.,Rheology of Hydrophobically Modified Polyacrylamide- co … ,Rheology of Hydrophobically Modified Polyacrylamide- co -poly(acrylic acid) on Addition of Surfactant and Variation of Solution pH July 2004 Langmuir 20(12):4859-66

Rheology of hydrophobically modified polyacrylamide-co …

Surfactant-mediated network formation with polymer coil expansion and hydrogen bonding between partially ionized AA groups as additional factors explain the constant shear and shear dependent viscosity measurements in aqueous systems of co- and terpolymers. Constant shear and shear dependent viscosity measurements are reported in aqueous systems of co- and terpolymers of acrylamide (AM), N-n …,Rheology of hydrophobically modified polyacrylamide-co … ,Rheology of hydrophobically modified polyacrylamide-co-poly(acrylic acid) on addition of surfactant and variation of solution pH. Yan Li, Jan C T Kwak.,Rheology of Hydrophobically Modified Polyacrylamide in … ,Request PDF | On Jan 1, 2003, S. Wu and others published Rheology of Hydrophobically Modified Polyacrylamide in Water | Find, read and cite all the research you need on ResearchGate

Rheology of aqueous solutions of hydrophobically modified …

Hydrophobically modified polyacrylamides (HMPAM) were synthesized by aqueous micellar copolymerization using as hydrophobic monomers n -decylacrylamide and t -octyl-acrylamide. The synthesized polymers contained between 0.5 and 1.5 mol.% of the hydrophobic groups.,Rheology of Hydrophobically Associating Polymers for … ,for hydrophobically modified polyacrylamide. The hydrophobically modified hydrolyzed polyacrylamide showed a minimum in reduced viscosity as the salinity was increased.,Rheological response of a modified polyacrylamide–silica … ,hybrid mixtures of hydrophobically modified polyacrylamide (hmpam) with hydrophobically modified silica nanoparticles (nps) emerged as a promising strategy for achieving enhanced stability and high viscosity in brines having a high total dissolved solids (tds) content and high hardness at elevated temperatures (>20 wt% tds, including >1.5 wt% …

Rheology of hydrophobically modified polyacrylamide-co …

Rheology of hydrophobically modified polyacrylamide-co-poly(acrylic acid) on addition of surfactant and variation of solution pH. Yan Li, Jan C T Kwak.,Modulation of rheological behaviors of hydrophobically … ,Rheological behaviors of the aqueous solution of N-benzylacrylamide-modified partially hydrolyzed polyacrylamide in the presence of various surfactants are compared in this study. In addition to the electrostatic contribution, the steric factor of the surfactant molecules is found to play an important role in tuning the rheology of polymer solution presumably through diverse kinetics of mixed …,Effect of Hydrophobically Modified Polyacrylamide on … ,Effect of Hydrophobically Modified Polyacrylamide on Interfacial Dilational Rheological Properties of Crude Oil Components[J]. Acta Physico-Chimica Sinica, ;2010, 26(11): 2982-2988.

Yan Li's research works | Dalhousie University, Halifax …

Yan Li's 3 research works with 96 citations and 43 reads, including: Rheology of Hydrophobically Modified Polyacrylamide- co -poly(acrylic acid) on Addition of Surfactant and Variation of Solution pH,Rheology and binding studies in aqueous systems of … ,Hydrophobically modified polyacrylamide with hydrophobic microblocks was prepared by homocopolymerization of sodium 2-acrylamido-tetradecane sulfonate (NaAMC(14)S) and acrylamide (AM) in water …,Salt effect on hydrophobically modified polyacrylamide … ,The emulsification of amphiphilic polymer is inevitably affected by the salinity environment in the preparation and flooding process. The variation of emulsions in stability and rheology has a significant influence on the efficiency of polymer flooding.

Time effects on the rheological behavior … – ScienceDirect

Rheological data of hydrophobically modified polyacrylamide copolymers aqueous solutions with SDS indicate that the time-dependent behavior is very sensitive to the amount of surfactant and/or shear stress imposed on the system. Only the PAM-C8-1.5/SDS data obtained upon increasing and decreasing shear rates presented hysteresis.,Rheological response of a modified polyacrylamide–silica … ,Rheological response of a modified polyacrylamide–silica nanoparticles hybrid at high salinity and temperature†. Mohsen Mirzaie Yegane * a, Fatemeh Hashemi b, Frank Vercauteren c, Nicole Meulendijks c, Ridha Gharbi d, Pouyan E.,Rheological properties of acrylamide/butyl acrylate/2 … ,Request PDF | Rheological properties of acrylamide/butyl acrylate/2-acrylamido-2-methyl-1-propane sulfonic acid co- and terpolymers synthesized by heterogeneous and micellar methods …

Rheology of aqueous solutions of hydrophobically modified …

Hydrophobically modified polyacrylamides (HMPAM) were synthesized by aqueous micellar copolymerization using as hydrophobic monomers n-decylacrylamide and t-octyl-acrylamide. The synthesized polymers contained between 0.5 and 1.5 mol.% of the hydrophobic groups.,Rheological Properties of Hydrophobically Modified Poly … ,Zhao, G.Q., Chen, S.B.: Nonlinear rheology of aqueous solutions of hydrophobically modified hydroxyethyl cellulose with nonionic surfactant. J.,Effect of Hydrophobically Modified Polyacrylamide on … ,Effect of Hydrophobically Modified Polyacrylamide on Interfacial Dilational Rheological Properties of Crude Oil Components[J]. Acta Physico-Chimica Sinica, ;2010, 26(11): 2982-2988.

Hydrophobically modified polyacrylamide block copolymers …

Hydrophobically modified polyacrylamide block copolymers for fast, high-resolution DNA sequencing in microfluidic chips Electrophoresis . 2008 Dec;29(23):4669-76.,Rheology of hydrophobically modified polymers with … ,Hydrophobically modified hydroxyethylcellulose (hmHEC) with substitution levels of C 12 and C 16 hydrophobes between 0.9 and 7.3 mol% and hydrophobically modified polyacrylamide (hmPAM) with a sulfonated C 12 hydrophobe at 1 mol% show the effects of hydrophobe type and content on interactions. Sodium dodecyl sulfate (SDS …,Hydrophobically Modified Associative Polymer Solutions … ,Hydrophobically Modified Associative Polymer Solutions: Rheology and Microstructure in the Presence of Nonionic Surfactants

Rheological properties of acrylamide/butyl acrylate/2 …

Hydrophobically modified polyacrylamides are used as rheology modifier and thickener in various applications. Relationship between the microstructure and rheological properties of acrylamide/butyl acrylate (AM/BA) copolymers and AM/BA/2-acrylamido-2-methyl-1-propane sulfonic acid (AM/BA/AMPS) terpolymer synthesized by heterogeneous and micellar methods were studied in the present work.,Solution properties of poly(acrylamide-co-3,5,5 … ,The physicochemical properties of hydrophobically modified polyacrylamide (HAPAM) containing a small amount of hydrophobic groups (3,5,5-trimethylhexane methacrylate) and its partially hydrolyzed derivative (HAPAM-10N500) were investigated. The 13C spectrum was used to establish the degree of hydrolysis of HAPAM-10N500.,Synthesis, characterization, rheological behavior, and … ,Guoqing Jiang, Fengqi Liu, Effect of Mineral Salts on Steady Rheological Properties of Nonionic Hydrophobically Modified Polyacrylamide and Its Stress-Relaxation Behavior, Journal of Macromolecular Science, Part A, 10.1080/10601325.2014.843397, 50, 12, (1209-1217), (2013).

Rheology of aqueous solutions of hydrophobically modified …

Hydrophobically modified polyacrylamides (HMPAM) were synthesized by aqueous micellar copolymerization using as hydrophobic monomers n-decylacrylamide and t-octyl-acrylamide. The synthesized polymers contained between 0.5 and 1.5 mol.% of the hydrophobic groups.,Rheology of hydrophobically modified polymers with … ,Hydrophobically modified hydroxyethylcellulose (hmHEC) with substitution levels of C 12 and C 16 hydrophobes between 0.9 and 7.3 mol% and hydrophobically modified polyacrylamide (hmPAM) with a sulfonated C 12 hydrophobe at 1 mol% show the effects of hydrophobe type and content on interactions. Sodium dodecyl sulfate (SDS …,Modulation of rheological behaviors of hydrophobically … ,Modulation of rheological behaviors of hydrophobically modified polyacrylamide based on micellar Colloid and Polymer Science ( IF 1.931) Pub Date : 2020-06-19, DOI: 10.1007/s00396-020 Chengyang Jiang, Parastoo Sakinejad, Ruoyu Xu, Yongchun Tang

Rheological Properties in Aqueous Solution for …

Free Online Library: Rheological Properties in Aqueous Solution for Hydrophobically Modified Polyacrylamides Prepared in Inverse Emulsion Polymerization.(Research Article) by "International Journal of Polymer Science"; Engineering and manufacturing Copolymers Surface active agents,[PDF] Solution rheology of hydrophobically modified … ,DOI: 10.1122/1.1773781 Corpus ID: 106398578. Solution rheology of hydrophobically modified associative polymers: Effects of backbone composition and hydrophobe concentration,Rheological response of a modified polyacrylamide–silica … ,hydrophobically modified polyacrylamide (HMPAM) with hydrophobically modified silica nanoparticles (NPs) emerged as a promising strategy for achieving enhanced stability and high viscosity in brines … 24,26 co-monomers increases tolerance to high salinity particularly to the presence of divalent cations and against thermal hydrolysis …

Effect of Hydrophobically Modified Polyacrylamide on …

The effect of hydrophobically modified polyacrylamide (HMPAM) on the dilational rheological properties of interfacial films containing acidic components or asphaltenes in petroleum crude oil was investigated by drop shape analysis method. The influence of surface-active component concentration on the dilational rheological behavior was …,Poly (N-vinyl formamide-co-acrylamide) hydrogels … ,Poly(N-vinyl formamide-co-acrylamide) hydrogels were prepared by free radical chain polymerization using ammonium persulfate as redox initiator, N,N-Methylene bisacrylamide as crosslinker, and N, Nʹ, Nʹʹ, Nʹʹʹ-tetramethyl ethylenediamine as accelerator. The synthesis of hydrogels was confirmed by FTIR and SEM.,Synthesis, characterization, rheological behavior, and … ,Guoqing Jiang, Fengqi Liu, Effect of Mineral Salts on Steady Rheological Properties of Nonionic Hydrophobically Modified Polyacrylamide and Its Stress-Relaxation Behavior, Journal of Macromolecular Science, Part A, 10.1080/10601325.2014.843397, 50, 12, (1209-1217), (2013).