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Polyethylene sulfonate

The most radiation-stable poly(olefin sulfone) is polyethylene sulfone) and the most radiation-sensitive is poly(cyclohexene sulfone). In the case of poly(3-methyl-l-butene sulfone) there is very much isomerization of the olefin formed by radiolysis and only 58.5% of the olefin formed is 3-methyl-l-butene. The main isomerization product is 2-methyl-2-butene (37.3% of the olefin). Similar isomerization, though to a smaller extent, occurs in poly(l-butene sulfone) where about 10% of 2-butene is formed. The formation of the olefin isomer may occur partly by radiation-induced isomerization of the initial olefin, but studies with added scavengers73 do not support this as the major source of the isomers. The presence of a cation scavenger, triethylamine, eliminates the formation of the isomer of the parent olefin in both cases of poly(l-butene sulfone) and poly(3-methyl-1-butene sulfone)73 indicating that the isomerization of the olefin occurred mainly by a cationic mechanism, as suggested previously72. [Pg.918]

PESA is polyethylene sulfonic acid (water soluble). [Pg.482]

Lyapofate Sodium. Ethenesulfonic acid homopolymer sodium salt sodium lyapolate sodium apolate sodium polyethylene sulfonate polyethylene sodium sulfonate PES Peson. (C2HaNa03S) . [Pg.883]

High-pressure studies of the aquation of [M(NH3)5Br] (M = Cr, Co) in the presence and absence of polyelectrolytes (sodium polyethylene sulfonate or polystyrenesulfonate) indicates a dissociative mechanism for the cobalt(III) complex, and an associative mechanism for the chromium(III) complex. The chromium(III) data in various polyelectrolyte media are summarized in Table 6.2. The Hg -induced aquation of [Cr(NH3)5Br] has also been studied in the presence of polyelectrolytes and at high... [Pg.162]

PES = polyethylene sulfonate PPS = polystyrenesulfonate (polyelectrolyte equivalents in parentheses). [Pg.163]

Ise N, Asai K (1968) Mean activity coefficients of polyelectrolytes IX. Measurements of polyethylene sulfonates of various gegenions. J Phys Chem 72 1366 1369... [Pg.132]

Copoly(ethylene/methacrylic acid) Copoly(butadiene/acrylic acid) Perfluorsulfonate ionomer Perfluorocarboxylate ionomer Telechelic polybutadiene ionomer Chlorosulfonated polyethylene Sulfonated ethylene/propylene/diene terpolymer... [Pg.760]

Chem. Descrip. Alkylphenol polyethylene sulfonate Ionic Nature Anionic... [Pg.1581]

Polyelectrolyte Alternate copolymer maleic acid-methyl vinyl ether Polyacrylic acid Polyethylene-sulfonic acid Polyphosphate ... [Pg.332]

Low-density polyethylene (LDPE) Poly(phenyl sulfone)... [Pg.1011]

Shipping and Storage. MSA is shipped in tank tmcks and in plastic 55-gaHon dmms or smaller containers with polyethylene inserts. The freight classification is Alkyl Sulfonic Acid, Liquid 8 Corrosive Material, UN 2586, Chemical NOIBN. [Pg.154]

Polymerization of olefins such as styrene is promoted by acid or base or sodium catalysts, and polyethylene is made with homogeneous peroxides. Condensation polymerization is catalyzed by acid-type catalysts such as metal oxides and sulfonic acids. Addition polymerization is used mainly for olefins, diolefins, and some carbonyl compounds. For these processes, initiators are coordination compounds such as Ziegler-type catalysts, of which halides of transition metals Ti, V, Mo, and W are important examples. [Pg.2095]

In contrast to phosphorus esters, sulfur esters are usually cleaved at the carbon-oxygen bond with carbon-fluorine bond formation Cleavage of esteri nf methanesulfonic acid, p-toluenesidfonic acid, and especially trifluoromethane-sulfonic acid (tnflic acid) by fluoride ion is the most widely used method for the conversion of hydroxy compounds to fluoro derivatives Potassium fluoride, triethylamine trihydrofluoride, and tetrabutylammonium fluoride are common sources of the fluoride ion For the cleavage of a variety of alkyl mesylates and tosylates with potassium fluoride, polyethylene glycol 400 is a solvent of choice, the yields are limited by solvolysis of the leaving group by the solvent, but this phenomenon is controlled by bulky substituents, either in the sulfonic acid part or in the alcohol part of the ester [42] (equation 29)... [Pg.211]

In all the compositions, the DCP-cured blends showed better properties than the corresponding unvulcanized samples. Choudhary et al. [30] further demonstrated the use of EPDM, chlorinated PE, chlorosulfo-nated PE, maleic anhydride modified polyethylene, and blends of epoxidized natural rubber-sulfonated EPDM as compatibilizers in NR-LDPE (low-density PE) blends. [Pg.640]

Figure 14 shows the ATR spectrum of the etched polyethylene surface treated with a chronic acid group [76]. Absorption bands due to surface treatment appear at 3300, 1700, 1260, 1215, and 1050 cm". The band at 3300 cm represents the absorption due to the hydroxyl group and that at 1700 cm " is due to the carbonyl group. The bands at 1260, 1215, and 1050 cm are all due to the alkyl sulfonate group. [Pg.827]

POLYSULFONE POLYETHER SULFONE THIN SECTION (0.001 TO 0.050 IN.) POLYETHYLENE POLYPROPYLENE POLYVINYLS POLYBUTYLENES IONOMER... [Pg.420]

Pandey et al. have used ultrasonic velocity measurement to study compatibility of EPDM and acrylonitrile-butadiene rubber (NBR) blends at various blend ratios and in the presence of compa-tibilizers, namely chloro-sulfonated polyethylene (CSM) and chlorinated polyethylene (CM) [22]. They used an ultrasonic interferometer to measure sound velocity in solutions of the mbbers and then-blends. A plot of ultrasonic velocity versus composition of the blends is given in Eigure 11.1. Whereas the solution of the neat blends exhibits a wavy curve (with rise and fall), the curves for blends with compatibihzers (CSM and CM) are hnear. They resemble the curves for free energy change versus composition, where sinusoidal curves in the middle represent immiscibility and upper and lower curves stand for miscibihty. Similar curves are obtained for solutions containing 2 and 5 wt% of the blends. These results were confirmed by measurements with atomic force microscopy (AEM) and dynamic mechanical analysis as shown in Eigures 11.2 and 11.3. Substantial earher work on binary and ternary blends, particularly using EPDM and nitrile mbber, has been reported. [Pg.302]

FIGURE 11,1 Ultrasonic velocity versus acrylonitrile-butadiene mbber/ethylene-propylene-diene monomer (NBR-EPDM) blend composition (a) no compatibiUzer, (b) with chloro-sulfonated polyethylene (CSM), and (c) with chlorinated polyethylene (CM). (From Pandey, K.N., Setua, D.K., and Mathur, G.N., Polym. Eng. Set, 45, 1265, 2005.)... [Pg.305]

When two polymers interact or react with each other, they are likely to provide a compatible, even a miscible, blend. Epoxidized natural rubber (ENR) interacts with chloro-sulfonated polyethylene (Hypalon) and polyvinyl chloride (PVC) forming partially miscible and miscible blends, respectively, due to the reaction between chlorosulfonic acid group and chlorine with epoxy group of ENR. Chiu et al. have studied the blends of chlorinated polyethylene (CR) with ENR at blend ratios of 75 25, 50 50, and 25 75, as well as pure rubbers using sulfur (Sg), 2-mercapto-benzothiazole, and 2-benzothiazole disulfide as vulcanizing agents [32]. They have studied Mooney viscosity, scorch... [Pg.316]

Carboxymethylcellulose, polyethylene glycol Combination of a cellulose ether with clay Amide-modified carboxyl-containing polysaccharide Sodium aluminate and magnesium oxide Thermally stable hydroxyethylcellulose 30% ammonium or sodium thiosulfate and 20% hydroxyethylcellulose (HEC) Acrylic acid copolymer and oxyalkylene with hydrophobic group Copolymers acrylamide-acrylate and vinyl sulfonate-vinylamide Cationic polygalactomannans and anionic xanthan gum Copolymer from vinyl urethanes and acrylic acid or alkyl acrylates 2-Nitroalkyl ether-modified starch Polymer of glucuronic acid... [Pg.12]

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]

A plugging material with 2-furaldehyde-acetone monomer and silicone oligomers has been described [1099]. The components for this material are shown in Table 18-1. The 2-furaldehyde-acetone monomer can contain mono-furfurylidene-acetone and difurfurylidene-acetone. The hardener can be iron chloride, benzene-sulfonic acid, hexamethylene diamine, or polyethylene polyamine. The plugging stone has improved strength, elastic-deformation, and anticorrosion and adhesion properties. [Pg.279]

T. Austad, O. Rorvik, T. A. Rolfsvag, and K. B. Oysaed. Adsorption Pt 4 An evaluation of polyethylene glycol as a sacrificial adsorbate towards ethoxylated sulfonates in chemical flooding. J Petrol Sci Eng, 4(6) 265-276, January 1992. [Pg.353]


See other pages where Polyethylene sulfonate is mentioned: [Pg.151]    [Pg.187]    [Pg.571]    [Pg.481]    [Pg.146]    [Pg.317]    [Pg.130]    [Pg.311]    [Pg.133]    [Pg.134]    [Pg.135]    [Pg.3043]    [Pg.328]    [Pg.151]    [Pg.187]    [Pg.571]    [Pg.481]    [Pg.146]    [Pg.317]    [Pg.130]    [Pg.311]    [Pg.133]    [Pg.134]    [Pg.135]    [Pg.3043]    [Pg.328]    [Pg.82]    [Pg.87]    [Pg.347]    [Pg.461]    [Pg.1952]    [Pg.150]    [Pg.341]    [Pg.921]    [Pg.276]    [Pg.332]    [Pg.921]   
See also in sourсe #XX -- [ Pg.250 ]




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