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Polyethylene glycol alkyl ethers

Aboofazeli, R., Lawrence, C. B., Wicks, S. R., and Lawrence, M. J. (1994), Investigations into the formation and characterization of phospholipid microemulsions. Part 3. Pseudo-ternary phase diagrams of systems containing water-lecithin-isopropyl myristate and either an alkanoic acid, amine, alkanediol, polyethylene glycol alkyl ether or alcohol as cosurfactant, Int. J. Pharm., Ill, 63-72. [Pg.786]

Aerosol OT (sodium diethylhexylsulfosuccinate) Didodecyldimethylammonium bromide Nonionic surfactant of the polyethylene glycol alkyl ether type the alkyl chain contains i carbon atoms and the polar group j ethylene glycol units Critical micelle concentration... [Pg.164]

Grell, E., Lewitzki, E., von Raumer, M., Hormann, A. Lipid-similar thermal transition of polyethylene glycol alkyl ether detergents. J. Therm. Aned. Galorim-etry 1999, 57(1), 371-375. [Pg.70]

Tetrasubstituted phosphonium halides are just as effective as their ammonium counterparts. A combination of tetraphenylphosphonium bromide and either 18-crown-6 or polyethylene glycol dimethyl ether with spray-dried potassium fluoride converts 4-chlorobenzaldehyde to 4-fluorobenzaldehyde in 74% yield [67] In addition, the halogen of a primary alkyl chloride or bromide is easily displaced by fluorine in aqueous saturated potassium fluoride and a catalytic amount of hexadecyltributylphosphonium bromide [68] (Table 7 Procedure 4, p 194)... [Pg.191]

Nitrogen alkylation occurs easily under sonochemical conditions [128], Indole and carbazole undergo N-alkylation with increased rates and yields under sonication in the presence of polyethylene glycol methyl ether as PTC. No reaction occurs in the absence of the PTC (Eq. 3.28). [Pg.117]

Polyethylene Glycol)-Alkyl Dextran Ether (DexPEGioCn) for Drug Delivery... [Pg.248]

The third effort in the early development in microemulsion science originated with Saito and Shinoda [18,19] in Japan. In their studies on the temperature-dependent behavior of water-hydrocarbon-polyethylene glycol alkyl (aryl) ether systems, a relationship was observed between the cloud point of the surfactant and the solubilization of the hydrocarbon. For aliphatic hydrocarbons it was found that the solubilization of hydrocarbon... [Pg.3]

Polyethylene glycol octylphenol ether Polyethylene glycol p-octylphenyl ether Polyethylene glycol p-t-octylphenyl ether Polyethylene glycol p-1,1,3,3-tetramethyl butyl phenyl ether Polyoxyethylene mono (octylphenyl) ether Classification Aromatic phenol ethoxylated alkyl phenol... [Pg.2934]

The sonochemical alkylation at a nitrogen atom appeared for the first time in a paper by Davidson et al A t)q)ical example is given in Eq. 48, and many others are known. With carbazole, the rate increase is high, ca. 50 times, but the presence of polyethylene glycol methyl ether as a PTC is necessary. Alkylation of macrocyclic amines was improved by sonication in the presence of potassium hydroxide (Eq. 49), and quatemization is avoided. A practically quantitative yield is observed, even without PTC, but in this particular case, a phase transfer autocatalytic mechanism is probable. o... [Pg.139]

N-Alkylation of secondary amine takes place under sonication in the presence of a PTC reagent, polyethylene glycol monomethyl ether. SimilarlyN-alkylation of diphenyl amine is accomplished under sonication (Scheme 10). [Pg.77]

Polyethylene glycol alkyl aryl ether phosphate 0.01... [Pg.94]

Sodium a-sulfomethylmyristate is the major component of a clear, antiseptic, liquid cleanser especially for use on the skin. A disinfectant such as fluoro-phene, bithionol, p-chloro-m-xylenol, or hexachlorophene is added, and also a high-quality animal, vegetable, mineral, or synthetic oil and an alkyl ether of polyethylene glycol [87]. [Pg.489]

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]

The only study available on metabolites of AE was performed by Crescenzi et al. [17]. The initial biodegradation of AE occurs by cleavage at the ether bridge between the alkyl and ethoxylate chain, resulting in polyethylene glycols (PEG) and alcohols. In consecutive oxidation steps, the PEG chains are shortened and mono- and dicarboxylated metabolites (MCPEG and DCPEG, respectively) are formed. [Pg.755]


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See also in sourсe #XX -- [ Pg.155 ]




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Alkyl glycolates

Glycols/glycol ethers

Polyethylene glycol

Polyethylene glycole

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