Polystyrenesulfonate

Anionic hydrophobic Sulfonated lignin sodium salt, sodium polystyrenesulfonate Buffer or salt solution with organic solvent (e.g., 20% CH,CN in 0.1 M NaNOd... 

Problems with adsorption onto the packing material are more common in aqueous GPC than in organic solvents. Adsorption onto the stationary phase can occur even for materials that are well soluble in water if there are specific interactions between the analyte and the surface. A common example of such an interaction is the analysis of pEG on a silica-based column. Because of residual silanols on the silica surface, hydrogen bonding can occur and pEG cannot be chromatographed reliably on silica-based columns. Eikewise, difficulties are often encountered with polystyrenesulfonate on methacrylate-based columns. 

Rexyn 101 (polystyrenesulfonic acid), 80-91% yield." This method does not cleave the r-butyldimethylsilyl ether. 

As described above, Steinhardt and Fugitt81 found that the catalytic activity of polystyrenesulfonic acid 37 (HPSt) was higher than that of mineral acid for the add hydrolyses of proteins. Lawrence and Moore82 investigated the hydrolysis rates of glycylpeptides more quantitatively by using cationic... 

Hammet and collaborators140, 141 studied in more detail the hydrolysis of aliphatic esters with a cation-exchange resins as catalyst. They found that replacement of 70% of the hydrogen ions in a crosslinked polystyrenesulfonic add by cetyl-trimethylammonium ions had a specifically favorable effect on the effectiveness of the remaining hydrogen ions for the hydrolysis of ethyl-n-hexanoate. From these findings, the important contributions of the hydrophobic forces, in addition to the electrostatic forces, is clearly demonstrated. 

Cationic exchanger (crosslinked polystyrenesulfonic acid) was found to be very slightly more effective in the hydrolyses of cane suger than sulfuric acid144. ... 

Vinyl Polymerization (383) Radical Polymerization of Vinyl Monomer with an Aqueous Solution of Polystyrenesulfonate or Polyvinylphosphonate... 

Polymethallylsulfonate (18), Polyallylsulfonate (19), Polystyrenesulfonate (20), Crosslinked Polystyrenesulfonate (Ion Exchange Resin) (21), Chondroitin Sulfate (22), Polyvinylphosphonate (23). ... 

The present paper deals with the uncatalyzed radical polymerization initiated with the water-soluble macromolecule in the absence of Cu(II) ion. Using polystyrenesulfonate (PSS-Na) and polyvinylphosphonate (PVPA) as the macromolecules, a study on the process of polymerization was made. And a new concept on the "hard and soft hydrophobic areas and monomers" was proposed. 

Chuy, C., Basura, V. L, Simon, E., Holdcroft, S., Horsfall, J. A. and Lovell, K. V. 2000. Electrochemical characterization of ethylenetetrafluoroethylene-g-polystyrenesulfonic acid solid polymer electrolytes. Journal of the Electrochemical Society 147 4453 58. 

A glass substrate carrying an ITO film having a thickness of 150 nm was spin coated with 70 nm of poly(3,4)ethylenedioxythiophene/polystyrenesulfonic acid thin film and then dried at 200°C for 10 minutes. A 50-nm coating of a selected experimental agent was sprayed onto the initial film and dried. Lithium fluoride, calcium, and aluminum were then vapor-deposited at 0.4 nm, of 5 and 180nm, respectively. 

Polymethylmethacrylate (PMMA) Polyisodecylmethacrylate Polyacrylic acid (PAA) Polyacrylamide (PAAm) Hydrolyzed polyacrylamide Glyoxylyzed polyacrylamide Polyisobutylene (PIB) Polyethyleneoxide (PEO) Polystyrene Polystyrenesulfonate Polyethylenimine (PEI) Polyvinylalcohol (PVA) Polyvinylpyrrolidone (PVP) Poly-cw-isoprene (PCIP)... 

Despite some small spectral differences, the similarities have been sufficient to confirm the slow step in the electrochemistry of immobilized cobalt porphyrin mediators (113) and to identify the intermediates involved in a tetrathiafulvalene polymer coated electrode (7). A polyxylylviologen -polystyrenesulfonate co-polymer coated electrode, on the other hand, showed no changes in the position of the peaks in the absorption spectra upon immobilization (111). Presumably this indicated an absence of interactions between neighboring viologen moieties. Similar spectral results have been obtained using photoacoustic spectroscopy (PAS). Heptyl viologen adsorbed on Pt exhibited an unshifted spectrum which correlated with the electrochemical results (115). 

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