Polyoxyethylene glycol esters

This category includes polyoxyethylene glycol esters, sorbitan esters, fatty acid esters of glycols and glycerol, including ethoxylated derivatives, and sugar esters. 

O Lenick Jr, A. J. (2000) Evaluation of polyoxyethylene glycol esters of castor, high-erucic acid rapeseed, and soybean oils. J. Surfactants Deterg., 3, 201-206. 

Polyoxyethylene Esters. This series of surfactants consists of polyoxyethylene (polyethylene glycol) esters of fatty acids and aUphatic carboxyhc acids related to abietic acid (see Resins, natural). They differ markedly from mono- and diglycerides in properties and uses. 

The most common surfactants for analytical applications are nonionic (polyoxyethylene glycol monoethers, polyoxyethylene methyl- -alkyl ethers, t-octylphenoxy polyoxyethylene ethers, and polyoxyethylene sorbitan esters... 

Ethoxylated fatty acid esters macrogol stearates Marlosol PEG fatty acid esters PEG stearates polyethylene glycol stearates poly(oxy-l,2-ethanediyl) a-hydro-to-hydroxyoctade-canoate polyoxyethylene glycol stearates. 

Drewmulse [Drew]. TM for a series of glycerol and glycol esters, and sorbitan and polyoxyethylene sorbitan esters of fatty acids. 

Groups 3 and 4. 45Sc NMR spectroscopy was used to follow the formation of complexes between ScCl3 and podand ligands (inorganic esters of polyoxyethylene glycols).1116... 

Propylene Glycol, Sorbitol, and POE Sorbitol Esters Propylene glycol esters are more lipophilic than the corresponding glycerol esters sorbitol esters are more hydrophilic (unless dehydrated in course of manufacture). Polyoxyethylenation of sorbitol (and anhydrosorbitol produced during manufacture) gives wide range of solubilities and hydrophilic-lipophilic balances to products. 

Glucoside alkyl ethers Polyoxyethylene glycol octylphenol ethers Polyoxyethylene glycol alkylphenol ethers Glycerol alkyl esters... 

In such a calculation, an unsubstituted polyoxyethylene glycol would have an HLB of 20. HLB values for some typical nonionic surfactants are given in Table 11.3. Surfactants based upon polyhydric alcohol fatty acid esters such as glycerol monostearate can be handled by the relationship... 

Szymanowski, J., Miesiac, I. 1985. Polyoxyethylene glycol monoalkyl ethers and esters of carboxylic acids. Tenside Surfact. Deterg. 22 230-236. 

Other food emulsifiers are made by transesterification of fatty acid methyl esters with poly glycerols, sorbitan, sucrose and stearoyl lactate (Figure 10.2). Sugar, sorbitan fatty esters and polyoxyethylene sorbitan esters are used to stabilize oil-in-water food emulsions. Optimum emulsification is achieved with combinations of emulsifiers. Margarines are made with a combination of monoglycerides and lecithin, and cake mixes with a mixture of monoglycerides and propylene glycol monoesters. 

Polyethylene glycol ester with tall oil fatty acid Polyethylene polyammonium salt Polyethylene-polypropylene glycol Polylactide resin Polyoxyalkylenes Polyoxyethylene castor oil... 

Higher pressure gas chromatography above critical temperatures has been used (Klesper et al 26) to separate nickel actio-porphyrin II and nickel mesoporphyrin IX dimethyl esters. Dichlorodifluoro-methane (critical temperature 112°) at a starting pressure of 1830 p.s.i. was used to separate the two nickel porphyrins in 1 mg quantities on a column of polyoxyethylene glycol (33%) on Chromosorb W at 150 to 170°C. The porphyrins do not move on the column at a gas pressure of less than 600 p.s.i. 

Table 6.11 Relation between HLB of polyoxyethylene glycol stearates and polyoxyethylene glycol sorbitan fatty acid esters and the minimum bactericidal concentration of tyrothricin. Surfactant concentration 2x lO- moir ...

Using sucrose mono-esters of fatty acids prepared according to Osipow et al. [173], Mima [174] solubilized vitamins A, D2, and vitamin E acetate. The sucrose esters were employed in an attempt to overcome the problems encountered when polyoxyethylene glycol ethers are used, such as the sensitivity... 

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