Sodium styrenesulfonate

Some polymers from styrene derivatives seem to meet specific market demands and to have the potential to become commercially significant materials. For example, monomeric chlorostyrene is useful in glass-reinforced polyester recipes because it polymerizes several times as fast as styrene (61). Poly(sodium styrenesulfonate) [9003-59-2] a versatile water-soluble polymer, is used in water-poUution control and as a general flocculant (see Water, INDUSTRIAL WATER TREATMENT FLOCCULATING AGENTs) (63,64). Poly(vinylhenzyl ammonium chloride) [70304-37-9] h.a.s been useful as an electroconductive resin (see Electrically conductive polya rs) (65). [Pg.507]

The living radical polymerization process is also valid for the polymerization of water-soluble monomers. The polymerization of sodium styrenesulfonate in aqueous ethylene glycol (80%) in the presence of TEMPO using potassium per-sulfate/sodium bisulfite as the initiator at 125 °C gave a water-soluble polymer with well-controlled molecular weight and its distribution [207]. [Pg.113]

Micellar media created by sodium dodecyl sulfate or cetyltrimethylammon-ium bromide have also a positive effect on the ortho selectivity [262,269-271]. In a recent article, the PFR of 1-naphthyl acetate in aqueous solutions of an antenna polyelectrolyte like poly(sodium styrenesulfonate-co-2-vinylfluorene) has been reported, which, in addition to the micellar effect, also provides singlet sensitization by means of fluorene chromophores. In this particular case, the occurrence of in-cage versus out-of-cage processes can be clearly correlated with the different packing of the microdomains, which depends on the molar fraction of monomers in the antenna copolymer [272]. [Pg.116]

Nakanishi, K. and Soga, N., Phase-separation in gelling silica organic polymer-solution—Systems containing poly(sodium styrenesulfonate), Journal of the American Ceramic Society 74(10), 2518-2530, 1991. [Pg.94]

Many ionogenic monomers containing a polymerizable carbon double bond have been reported in the literature, and therefore a wide variety of anionic, cationic, and amphophilic polyelectrolytes may be synthesized using free radical polymerizations. Examples of anionic ionogenic monomers which have been used to synthesize anionic polyelectrolytes include acrylic acid [4-10], methac-rylic acid [6-8,11,12], sodium styrenesulfonate [7,13,14], p-styrene carboxylic... [Pg.4]

The complexing ability of iminodiacetic acid type chelating agents, e.g. benzyl-aminediacetic acid (BDA) (8), was found to be enhanced considerably in aqueous solution by the use of a polymeric analogue such as (vinylbenzylamine diacetic acid)-co-(sodium styrenesulfonate) (PBDA) (9) 23). The chelate formation constants for... [Pg.110]

Poly(sodium styrenesulfonate) Poly(4-vinyibenzyltrimethylammonium chloride) 48-77... [Pg.17]

Poly(sodium styrenesulfonate) Quaternized poly(4-vinyl-pyridine) 78-80... [Pg.17]

Poly(sodium styrenesulfonate) Poly[l-(4-[2-(triethylammonio)ethyl]-phenyl)ethylene bromide] 81-85... [Pg.17]

Poly(sodium styrenesulfonate) Integral-type polycations 86-88... [Pg.17]

Poly(sodium styrenesulfonate) Poly(2-N,N-dimethylaminoethylmeth- acrylate) 89,90... [Pg.17]

Poly(sodium styrenesulfonate) Poly (1,2-dimethyl-5-pyridinium methyl sulfate) 91... [Pg.17]

Fig. 3a,b. Composition of polyelectrolyte complexes detected by conductometry in the poly-(sodium styrenesulfonate) (NaSS)-poly(4-vinylbenzyl-trimethylammonium chloride) (PVBMA) system49. (a) [NaSS] = [PVBMA] = 10-3 mol of repeating unit/1 (b) [NaSS] = [PVBMA] = 10 2 mol of repeating unit/1, [NaCl] = 1CT2 N... [Pg.22]

Fig, 12 a, b. Effect of ionic strength on the formation of polyelectrolyte complexes (a) Reduced viscosity, (b) transmittance Poly(methacrylic acid) (PMAA) (degree of neutralization of PMAA a = l)-Ionene-type polycation (2X), O PMAA(a = 0.75)-2X, 3 PMAA(a = 0.5)-2X, Poly(acrylic acid) (tz = 1)-2X, A Poly(sodium styrenesulfonate)-2X... [Pg.33]

Fig. 18 a, b. Typical permeabilities of various hydrogels to water and various solutes (a) Water permeability at pressures less than 7 x 107 dyne/cm2 531 (1) = polyelectrolyte complex of poly-(sodium styrenesulfonate) (NaSS)-poly(4-vinylbenzyltrimethylammonium chloride) (PVBMA), (2) = crosslinked hydrogel of poly(2-hydroxyethyl methacrylate), (3) - cellulose (b) Dialytic permeability of a polyelectrolyte complex composed of NaSS-PVBMA to solutes with various molecular weights541 (1) Water, (2) neutral polyelectrolyte complex (water content = 70%), (3) anionic polyelectrolyte complex (water content = 61%), (4) cellophane and cuprophane (water content = 57%)... [Pg.39]

Ioplex and Biolon are commercial names of polyelectrolyte complexes composed of poly(4-vinyl-benzyltrimethylammonium chloride) (PVBMA) and poly(sodium styrenesulfonate) (NaSS). PEPP and PAA are poly(ethylenepiperazine) and poly(acrylic add), respectively... [Pg.40]

Ioplex = poly(sodium styrenesulfonate)-poly(4-vinylbenzyltrimethylammonium chloride) (0.5 0.5), PAA = poly(acrylic add), PEPP = polyethylenepiperazine, PMAEM = poly(2-N,N-dimethylaminoethyl methacrylate), GC = glycol chitosan, CSC = chondroitin sulfate, Hep = heparin,... [Pg.40]

Fig. 19. Comparison of molecular weight-normalized values of the permeability coefficients of biological membranes with similar values determined for the polyelec-trolyte complex membrane of poly(sodium styrenesulfonate) (NaSS)-poly(4-vinylben-zyltrimethylammonmm chloride) (PVBMA)70 A Aminopyrine,...

Fig. 23 a, b. Dielectric properties of polyelectrolyte complexes881 (a) Variation of dielectric constant e and loss factor e" of polyelectrolyte complexes with frequency (b) Variation of loss tangent e"/e of polyelectrolyte complexes with frequency. NaSS = poly(sodium styrenesulfonate), PAA = polyfacrylic add), PVBMA = poly(4-vinylbenzyl-trimethylammonium chloride), PEI = polyethyleneimine, lonene (Bubond 60) = — 2CTK... [Pg.46]

The polyelectrolyte complex is prepared by mixing poly(sodium styrenesulfonate) (NaSS) and partially quaternized poly(4-vinylpyridine) (QPVP) at [NaSS]/[cationic site of QPVP] = 1.0... [Pg.101]

Table 28. In vivo clotting test of the polyelectrolyte complex of poly(sodium styrenesulfonate)-poly(4-vinylbenzyl-trimethylammonium chloride) in comparison with other prosthetic rings 1... [Pg.105]

Sodium-2-acrylamido-2-2-methylpropane sulfonate Sodium styrenesulfonate N-isopropylacrylamide Poly(oxyethylated alkylphenyl ether) Octyldecyltrimethylammonium chloride Propylene carbonate Poly(methyl methacrylate)... [Pg.258]

High polymer/surfactant weight ratios (up to about 15 1) of polystyrene microlatexes [73] have been produced in microemulsions stabihzed by polymerizable nonionic surfactant by the semi-continuous process. The copolymerization of styrene with the surfactant ensures the long-term stabihty of the latexes. Nanosized PS microlatexes with polymer content (<25 wt%) were also obtained from an emulsifier-free process [74] by the polymerization of styrene with ionic monomer (sodium styrenesulfonate, NaSS), nonionic comonomer (2-hydroxyethylmethacryalte, HEM A), or both. The surfaces of the latex particles were significantly enriched in NaSS and HEMA, providing better stabilization. [Pg.269]

It has been attempted to perform template polymer syntheses without using biological sources. Concepts focus on the formation of a complex between monomer molecules and a present macromolecule [4,480], This way the monomer will get preorganized and the polymerization is supposed to follow a zip mechanism controlled by the length and the configuration of the template polymer, offering replication of the molecular weight and control of the stereo structure. Polymerization of acrylic acid in the presence of poly(ethyleneimine), N-vinylimidazole/ poly(methacrylic acid) or acrylonitrile with poly(vinylacetate) have been described [469,470,471,472,473]. Recently the preparation of solid polyelectrolyte complexes from chitosan and sodium-styrenesulfonate has been reported [481]. [Pg.156]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...