Sodium p-styrene sulfonate

Sodium-p-styrene sulfonate (SST) was supplied by Exxon Research and Engineering Co. and used without further purification. n-Butyl acrylate was a product of Polysciences, Inc. and was passed through a column of neutral alumina, twice, before use to remove the inhibitor. Potassium persulfate and sodium bisulfate were recrystallized from distilled water and dried under vacuum. 

Monomers 4VP, 4-vinylpyridine NIPAAm, jV-isopropylacrylamidc AA, acrylic acid PEGMA, poly (ethylene glycol) methacrylate SPE, MAI-dimethyl-AW2-methacryloyloxycthyl-/V-0-sulfopropyl)amm<>-nium betaine AMPS, 2-acrylamido-2-methyl-l-propanesulfonic acid qDMAEMA, quaternary 2-dimethylaminoethyl methacrylate St, styrene HEMA, 2-hydroxyethyl methacrylate HEA, 2-hydro-xyethyl acrylate DMAEMA, 2-dimethylaminoethyl methacrylate MAA, methacrylicacid NaSS sodium p-styrene sulfonate AC, [(2-acryloyloxy)ethyl]trimethyl ammonium chloride GMA, glycidyl methacrylate NVP, jV-vinylpyrrolidone MAn, maleic anhydride BVE n-butyl vinyl ether AAm, acrylamide DEAAm, MA-diethylacrylamidc DMAAm, MA -dimethylacrylamidc MMA, methyl methacrylate. 

Similar work has been done by Gu et al. [154] on improving on the colloidal stability of the magnetic latex produced. Sodium p-styrene sulfonate (NaSS) was added in the course of the polymerization reaction. Very recently, silica-coated magnetic silica particles were encapsulated by a fluorescent polymeric shell of styrene and... 

Sodium vinyl sulfonate Sodium p-toluene sulfonate (ptsa) Sodium p-styrene sulfonate (SSS)... 

A cobalt 5,10,15-tetrakis(l-methylpyridinio-4-yl)porphyrin/poly(sodium p-styrene sulfonate)/reduced graphene oxide composite (CoTPyP/PSS-RGO), was fabricated using an in situ solvothermal synthesis method [92]. It showed excellent catalytic activity for ORR, attributed by the authors to its large electrochemically accessible surface area, to the excellent electrical conductivity of PS S-RGO, and to the synergistic effect between CoTPyP and PSS-RGO. 

Itsimo [25] has also shown that polymer-supported OPEN monosulfonamides containing sulfonated pendent group (Scheme 16) are able to catalyze the HTR reduction of ketones in water with sodium formiate as hydrogen donor (S/C = 100). However, TsDPEN immobilized on polystyrene crosslinked or not, polymer 30 and 31 respectively, shrank in water. Sodium /j-styrene sulfonate was copolymerized with chiral A-(vinylbenzene-p-sulfonyl)-DPEN (20) imder radical polymerization conditions with or without DVB leading respectively to ligand 32 and 33. Control of the balance hydrophilicity/hydrophobieity of the polymer support is carried out by changing the salt from Na to quaternary ammonium. All of these polymers swelled in water, and their respective ruthenium, rhodium or iridium complexes were prepared. Compared to sodium salt polymer-supported catalyst from 32a and 33a, ammonium... 

Type A copolymers and terpolymers have been prepared by copolymerizing vinyl pyridinium halides with alkali metal salts of sulfonate comonomers including vinylsulfonate, 2-acrylamido-2-methyl propane sulfonate, and p-styrene sulfonate (15-19). Methacrylamidopropyl-trimethyl ammonium chloride and p-styrene sulfonate have been terpolymerized with the hydrophilic monomer acrylamide (20,21). Type A copolymers and terpolymers have also been prepared from microemulsions of sodium 2-acrylamido-2-methyl-l-propanesulfonate and [2-(methacryloyloxy)ethyl]trimethylammonium chloride (22-25). 

Biggs S, Burns JL, Yan YD, Jameson GJ, Jenkins P (2000) Molecular weight dependence of the depletion interaction between silica surfaces in solutions of sodium poly(styrene sulfonate). Langmuir 16(24) 9242-9248... 

High cost and sharp decline in its conductivity above lOO C are the drawbacks of Nafion membranes, and many attempts have been made to improve these (Fatyeyeva et al. 2011). One such attempt is the fabrication of MMMs with surface-treated particles. Laponite clay was plasma-treated followed by the post-grafting of sulfonic monomer, sodium salt of p-styrene sulfonic acid, or 1,3-propane sul-tone. Plasma-processed clay particles were treated by PEG 1500 and freeze-dried... 

Schubert, M. A. Myers, J. P. Thrasher, G. T. Acrylic Acid-Sodium Styrene Sulfonated Copolymer Separator Coatings for Alkaline Electrolytes. Presented at the 202nd Meeting of the Electrochemical Society, Salt Lake City, UT. 

Figure 23-7. Coacervate formation (A and B) or solubilization (C and D) on mixing the polyanion of poly(sodium styrene sulfonate) S with poly(4-vinyl pyridinium hydrogen bromide) P or the ionene Y, or vice versa.

PS-b-PHOS Polystyrene-btocfe-poly(p-hydroxystyrene) PS-g-P4VP Polystyrene-grfl/t-poly(4-vinyl pyridine) PS-g-PA6 Polystyrene-grfl/t-poly(polyamide 6) PS-g-PEO Polystyrene-grfl/t-poly(ethylene oxide) PS-g-PI Polystyrene-gra/t-polyisoprene PS-g-PSSNa Polystyrene-grfl/t-poly(sodium styrene sulfonate)... 

The mechanism and kinetics of the inverse emulsion polymerization of p-sodium styrene sulfonate was investigated using both oil-soluble and water-soluble initiators (53). Table XI gives the recipe used in these polymerizations. The p-sodium styrene sulfonate was dissolved in the water, and the solution was emulsified in the o-xylene using the Span 60 (sorbitan monostearate ICI America) emulsifier in some experiments, the benzoyl peroxide was dissolved in the o-xylene in others, the potassium persulfate was dissolved in the aqueous phase. The polymerizations were carried out at 40-70°. The rates of polymerization were measured dilatometrically, the molecular weights by solution viscosity, and the latex particle sizes by electron microscopy. 

This unusual variation of N with emulsifier concentration suggests that the monomer droplets were a locus for particle nucleation, which was demonstrated by the particles as small as 20nm formed by emulsification of 20% aqueous poly-p-sodium styrene sulfonate solutions under the same conditions. Moreover, the interfacial tension between 20% aqueous p-sodium styrene sulfonate and o-xylene containing dissolved Span 60 was O.OOlO.Ol dynes/cm. Emulsion droplets as small as 20nm could compete effectively as a locus for particle nucleation with the monomer-swollen micelles (cmc in benzene 0.0022 gm/cc micelle molecular weight 52800 aggregation number 94 (55)). Thus both the micelles and the monomer droplets are loci for particle nucleation. 

Thus both the persulfate- and benzoyl peroxide-initiated inverse emulsion of p-sodium styrene sulfonate give results different from those expected from the solubilities of the initiators. 

Rather hydrophobic hoUow-fiber membranes are produced by melt spinning from blends of isotactic and atactic PMMA starting from the pure MMA monomers, or copolymerized with small amounts of p-styrene sodium sulfonate, dissolved in dimethylsulfoxide. Symmetric, almost homogeneous, PMMA membranes for HD, HF and TA are commercially available that are all sterilized by "y-ray irradiation. Their adsorptive properties have been reported to cause platelet adsorption with fibrin formation, possibly leading to high residual blood volumes in the filter (LocateUi et al., 2000) and one reported case of anaphylactic reaction (Hoenich, 1998). 

Regulatory FDA approved for topicals Canada DSL ManufJDistiib. Aldrich Alfa Chem Arch Personal Care Prods. Arista Ind. BASF Barnet Prods. Cosmetic Supplies USA Fabrichem Jarchem led. Ludd Colloids Naturex Richman Robeco Ruger Sigma-Aldrich Chemie GmbH/Fluka Sigma U.S. Synthetics Universal Preserv-A-Chem trans-Squalene. SeeSqualene SSL. See Sodium stearoyl lactylate SSMA. See Styrene/MA copolymer, sulfonated SSOS. See Starch sodium octenyl succinate SSS. See Sodium p-styrenesulfonate STAC. See Steartrimonium chloride Starch... 

Chromatography by ion exchange on a sulfonated poly(styrene-co-divinyl benzene) phase has been proposed as a replacement for titrimetry.57 Eluted by a dilute solution of a neutral salt such as sodium ethanesulfonate, the conductance of the protons can be measured in the absence of a suppressor from sub-millimolar to molar concentration. The response factors of mono-, di-, and trichloroacetic acid and of o-phthalic acid were large and essentially equivalent to ethanesulfonic acid, while the response factor of acetic acid was far smaller. A syringe pump has generated pressures as high as 72,000 psi (5000 bar) in a capillary column packed with 1 p particles, generating a fraction capacity of 300 peaks in 30 minutes.58... 

---