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4-Dodecylbenzene sulfonic acid

Example 4. Glycolysis of Polyurethanes with Propylene Oxide after Pretreatment with a Mixture of Diethanolamine and Potassium Hydroxide.57 Polyurethane scrap was treated with a mixture of diethanolamine and potassium hydroxide at a temperature between about 80 and 140° C with stirring to form an intermediate product. The weight ratio of the scrap PUR polymer to the mixture of diethanolamine and potassium hydroxide was from about 15 1 to 30 1. The intermediate product was reacted with propylene oxide at a temperature of from about 100 to 120°C in a closed reaction vessel to form a polyol. The propylene oxide was added at a rate to maintain a pressure of from about 2 to 5 atm (29-73 psi). The progress of the reaction was followed by following the change of pressure with time. When the pressure remained constant, the reaction of the intermediate product with propylene oxide was considered to be complete. The crude polyol obtained was treated with 10 mol % excess of dodecylbenzene sulfonic acid to remove the potassium hydroxide. [Pg.570]

Dodecylbenzene Sulfonic Acid 21.5 Caustic Soda (50%) 5.4 Sodium Laureth Sulfate (60%) 4.0 Mackam 35 (Cocamidopropy) 8etaine) 5.5 Sodium Xylene Sulfonate (40%) 8.0 Water, Dye, Fragrance qs to 100.0... [Pg.53]

Dodecylbenzene Sulfonic Acid Rhodapex NA-61 Alkamide DC 212/S Cheelox BF-13... [Pg.56]

Components % bv Weight Water 77.15 45% KOH 0.75 Burcosperse AP Liquid 3.00 Sodium Xylene Sulfonates 40% 3.40 Sodium Citrate 1.00 Dodecylbenzene Sulfonic Acid 1.75 Burco TME 6.00 Butyl Propasol 6.00 Varsol or Mineral Spirits 0.95... [Pg.77]

Dodecylbenzene sulfonic Acid Rhodapex NA-61 Alkamide DC-212/S Rhodacal A-246/L Rhodasurf 25-9 Citric Acid (50%), to pH B Ethanol SD-3A Preservative... [Pg.29]

V- Methyl magnesium chloride, dodecylbenzene sulfonic acid, THF... [Pg.401]

The product from Step 4 (0.9 grams) was dissolved in 20 ml THF, cooled in a dry ice/acetone bath, 9 ml 1M methyl magnesium chloride added drop wise over 15 minutes, and the mixture stirred for 2 hours and at 0°C. Once warmed to ambient temperature, it was poured into a 50 ml ice water mixture, 20 ml diethyl ether added, and the layers separated. The aqueous layer was extracted twice with 20 ml diethyl ether, the organic portions combined, and concentrated. The residue was dissolved in 50 ml toluene containing 2 drops of dodecylbenzene sulfonic acid, refluxed 2 hours, cooled, and 0.73 g product isolated. [Pg.403]

The product from Step 5 (450mg), l,l-di(4-methoxyphenyl)-2-propyn-l-ol (345mg), 2 drops of dodecylbenzene sulfonic acid, and 15 ml toluene were mixed then stirred at ambient temperature for 4 hours. Thereafter 15 ml apiece toluene and water were added, the organic layer isolated, dried, concentrated, and 289 mg product obtained by chromatography on a silica gel using chloroform, mp = 213-214 °C. [Pg.403]

Very few CPs are produced in bulk quantities. Polyphenylene sulfide, a member of the third generation of polymers, was produced in bulk quantities many years before CPs were established and its dopability was elucidated. Polyethylenedioxythiophene is commercially available as a water-based colloidal dispersion (Baytron P water dispersion), and presumably as dispersible powders. The powders with a conductivity of 5-10 S/cm can be dispersed in thermoplastic polymers and in organic solvents such as xylene. Polyaniline doped with dodecylbenzene sulfonic acid and complexed with zinc dodecylbenzene sulfonate is commercially available as a powder, which can be dispersed in polyolefins. The same polymer doped with p-toluenesulfonic acid is also available as a dispersible powder, Ormecon, and in a predispersed form for solution processing in polar and nonpolar media. Based on Ormecon PANi, there are many commercial products marketed for many different applications. [Pg.535]

PEDOT has been synthesized via the micellar route with sodium dodecyl sulfate and dodecylbenzene sulfonic acid.109110 It has been obtained with particle diameters of 35 to 100 nm and conductivities on the order of 50 S cm-1. Nanocomposites containing polythiophene and poly(A-vinylcarbazole) have been formed with average... [Pg.215]


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See also in sourсe #XX -- [ Pg.3 ]




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