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2-acrylamide-2-methylpropane

AMPS, 2-acrylamide-2-methylpropane sulfonic acid Mass, styrene sulphonic acid sodium salt DMAPAA, N,N-dimethylaminopropyl acrylamide HA, hyaluronic acid... [Pg.44]

The first attempt to use ion-containing polymers in ECDs was made by Randin in 1982 . He investigated polystyrene sulphonic acid (PSSA), polyethylene sulphonic acid (PESA), poly-2-acrylamide-2-methylpropane... [Pg.559]

Anionic-type partial alkali metal salt of poly(acrylic acid) (25-30), poly(isobutylene-maleic acid) [12, 13], poly(2-acrylamide-2-methylpropane-sulfonic acid) [14, 17], poly(aciyloxypro-pane sulfonic acid) [15], poly(vinyl sulfonic acid) [16]... [Pg.460]

Based on these experimental considerations, the authors succeeded in making accurate measurements of the electrical conductivity of gels. Here the electrical conductivity and other electrical properties of poly(2-acrylamide-2-methylpropane sulfonic acid) (PAMPS) will be introduced. [Pg.743]

Figure 3 shows the concentration dependence of the electrical conductivity of 2-acrylamide-2-methylpropane sulfonic acid (AMPS), its polymer solution, and the gel at 25°C [3],... [Pg.746]

Acid-alkaline environment, 240 Acid-alkaline exchange, 247 Acrylamide, 70, 71, 85, 87, 92, 93 Acrylamide membrane, 97-100 2-Acrylamide-2-methylpropane sulfonic acid (AMPS), 75, 305 molar conductivity, 305-6 Acrylamide-supported gel membrane, 98 Acrylic acid, 20, 73, 135, 184, 244, 258, 370 Acrylic monomer, 256... [Pg.850]

Poly(2-acrylamide-2-methylpropane sulfonic acid). See PAMPS... [Pg.858]

Acrylamide-acrylamido-2-methylpropane sulfonic acid copolymers [40623-74-2]... [Pg.11]

A fluid loss additive for hard brine environments has been developed [1685], which consists of hydrocarbon, an anionic surfactant, an alcohol, a sulfonated asphalt, a biopolymer, and optionally an organophilic clay, a copolymer of N-vinyl-2-pyrrolidone and sodium-2-acrylamido-2-methylpropane sulfonate. Methylene-bis-acrylamide can be used as a crosslinker [1398]. Crosslinking imparts thermal stability and resistance to alkaline hydrolysis. [Pg.49]

A formulation consisting of 2-acrylamido-2-methylpropane sulfonic acid, acrylamide, and itaconic acid has been proposed [676]. Such polymers are used as fluid loss control additives for aqueous drilling fluids and are advantageous when used with lime- or gypsum-based drilling muds containing soluble calcium ions. [Pg.49]

Lignin, brown coal polymer of methacrylic acid, methacrylamide, hydroxyethyl acrylate, hydroxypropyl acrylate, vinyl acetate, methyl vinyl ether, ethyl vinyl ether, N-methylmeth-acrylamide, N,N-dimethylmethacrylamide, vinyl sulfonate, or 2-acrylamido-N-methylpropane sulfonic acid free radical polymerization of a water-soluble vinyl monomer in an aqueous suspension of coals [705,1847]... [Pg.57]

Ethoxylated methylcarboxylates Propoxyethoxy glyceryl sulfonate Alkylpropoxyethoxy sulfate as surfactant, xanthan, and a copolymer of acrylamide and sodium 2-acrylamido-2-methylpropane sulfonate Carboxymethylated ethoxylated surfactants (CME) Polyethylene oxide (PEG) as a sacrificial adsorbate Polyethylene glycols, propoxylated/ethoxylated alkyl sulfates Mixtures of sulfonates and nonionic alcohols Combination of lignosulfonates and fatty amines Alkyl xylene sulfonates, polyethoxylated alkyl phenols, octaethylene glycol mono n-decyl ether, and tetradecyl trimethyl ammonium chloride Anionic sodium dodecyl sulfate (SDS), cationic tetradecyl trimethyl ammonium chloride (TTAC), nonionic pentadecylethoxylated nonylphenol (NP-15), and nonionic octaethylene glycol N-dodecyl ether Dimethylalkylamine oxides as cosurfactants and viscosifiers (N-Dodecyl)trimethylammonium bromide Petrochemical sulfonate and propane sulfonate of an ethoxylated alcohol or phenol Petrochemical sulfonate and a-olefin sulfonate... [Pg.198]

Acrylamide copolymers designed to reduce undesired amide group hydrolysis, increase thermal stability, and improve solubility in saline media have been synthesized and studied for EOR applications. These polymers still tend to be shear sensitive. Acrylamide comonomers that have been used include 2-acrylamido-2-methylpropane sulfonate, abbreviated AMPS, (1,321-324), 2-sulfo-ethylmethacrylate (325,326), diacetone acrylamide (324, 326), and vinylpyrrolidinone (327,328). Acrylamide terpolymers include those with sodium acrylate and acrylamido-N-dodecyl-N-butyl sulfonate (329), with AMPS and N,N-dimethylacrylamide (330), with AMPS and N-vinylpyrrolidinone (331), and with sodium acrylate and sodium methacrylate (332). While most copolymers tested have been random copolymers, block copolymers of acrylamide and AMPS also have utility in this application (333). [Pg.37]

Hjerten et al. [124] introduced the monolithic stationary phases based on acrylamides in the late 1980s. The cross-linked polyacrylamide can be directly synthesized within the mold by a one step free-radical chain polymerization. Acrylamide, methacrylamide, or piperazine diacrylamide are often employed as monomers, while V,A -methylene-bis-acrylamide is used as a cross-linker. 2-acrylamido-2-methylpropane sulphonic acid, vinylsulphonic acid, butyl methacrylate, or stearoyl methacrylate are usually added to the polymerization mixture to provide charge and functional groups [114]. [Pg.37]

Surface modifications of porous membranes with molecularly imprinted polymers have been reported. The membranes were photo-grafted with a functional monomer, 2-acrylamido-2-methylpropane-sulfonic acid and a cross-linker, N, N-methylenebis(acrylamide) in the presence of a template, desmetryn, in water [49],... [Pg.105]

Copolymers with sites for association in aqueous solutions were pre-pared by copolymerizing acrylamide with N-alkylacrylamides or with the ampholytic monomer pairs sodium 2-acrylamido 2 methylpro-panesulfonate (NaAMPS) and 2-acrylamido-2-methylpropane-dimethylammonium chloride (AMPDAC). The copolymers were characterized by elemental analysis, NMR and Fourier transform infrared spectroscopy, and lowhangle laser and quasielastic lightscattering measurements. Rheological properties were studied as a function of microstructure, molecular weight, polymer concentration, electrolyte concentration, and shear rate. On the basis of those results, a conceptual model that is based on microheterogeneous domain formation in aqueous solutions is proposed. [Pg.437]

Acrylamide/acrylic acid copolymer. SeeAcrylates/acrylamide copolymer Acrylamide homopolymer. See Polyacrylamide Acrylamide monomer. SeeAcrylamide Acrylamide, polymers. See Polyacrylamide 2-Acrylamido-2-methylpropane sulfonate. See 2-Acrylamido-2-methylpropanesulfonic acid... [Pg.962]

Kationic and anionic derivatives of PAAm also exhibit the aging effect. The examples are poly(acrylamide-co-methacryloyloxyethyl-N,N,N,-trimethyl-ammoniumchlorid) and Poly(acrylamide-co-sodium-2 sulfoethylmethacry-lathes) as well as poly(acrylamide-co-sodium-2-acrylamido-2-methylpropane-... [Pg.169]

Acrylamido-2-methylpropane sulfonic Water acid + A -methylene-bis-acrylamide... [Pg.11]

In addition there is a report of a water soluble polymeric (copolymer) photoinitiators. These initiators were synthesized by copolymerizing 2-acryloxy and 2-acrylamido anthraquinone monomers with three water-soluble comonomers acrylamide, 2-acrylamido-2-methylpropane sulfonic acid and 2-acryloxyethyl trimethylammonium iodide. The polymerization activity correlates well with their measured photo reduction quantum yields in water... [Pg.76]

A more recent study [70] examined the effects of the polymer on surfactant adsorption in a low tension polymer water flood (LTPWF). The surfactant was alkylpropoxyethoxy sulfate, Ci2-i5-(PO)4-(EO)2-0S03 Na, and the polymers were xanthan and a copolymer of acrylamide and sodium 2-acrylamido-2-methylpropane sulfonate (AN 125 from Floerger). The solid materials were sandstone cores from a North Sea oil reservoir, Berea, and Bentheim cores. For these systems the xanthan caused a 20% reduction in the adsorption of the surfactant. It was also observed that surfactant adsorption appeared to increase as the water... [Pg.144]

Hydrolysed polyacrylamide, HPA, is a good alternative at low salinities, but is not recommended to be used in hard water at high salinities. Copolymers containing sulfonate groups (acrylamide and sodium 2-acrylamido-2-methylpropane sulfonate from Floerger) are designed to tolerate high temperatures and seawater salinities. [Pg.212]

Property Acrylic acid Methacrylic acid Acrylamide AT-Isopropyl- acrylamide 2-Acrylainido-2-methylpropane-sulfonic add... [Pg.8025]

The second class of weakly charged polyelectrolyte gels -gels with fixed (or quenched) charged units - is represented by the copolymer gel of sodium 2-acrylamido-2-methylpropane-sulfonate and acrylamide ... [Pg.346]

S. Durmaz, and O. Okay, Acrylamide/2-acrylamido-2-methylpropane sulfonic acid sodium salt-based hydrogels Synthesis and characterization, Polymer., 41 (10), 3693-3704,2000. [Pg.359]

Tannin grafted with acrylamide and 2-acrylamido-2-methylpropane ... [Pg.218]

See other pages where 2-acrylamide-2-methylpropane is mentioned: [Pg.134]    [Pg.227]    [Pg.64]    [Pg.149]    [Pg.413]    [Pg.1366]    [Pg.1367]    [Pg.134]    [Pg.406]    [Pg.109]    [Pg.2066]    [Pg.502]    [Pg.227]    [Pg.34]    [Pg.161]    [Pg.163]    [Pg.302]    [Pg.34]    [Pg.50]    [Pg.2259]    [Pg.320]    [Pg.64]    [Pg.149]    [Pg.436]    [Pg.19]    [Pg.413]   


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