Glycol monoalkyl ethers

Table 5. Applications for Glycol Monoalkyl Ethers, R0(CH2CH20) H ...

Stemmier, K., D. J. Kinnison, and J. Alistair Kerr, Room Temperature Rate Coefficients for the Reactions of OH Radicals with Some Monomethylene Glycol Monoalkyl Ethers, J. Phys. Chem., 100, 2114-2116 (1996). 

Ethyl n-propylmalonate, 486 Ethyl n-propyl ketone, 340 4-Ethylpyridine, 844 Ethyl 2-pyridylacetate, 931, 932 Ethyl salicylate, 783 Ethyl sulphite, 304 Ethyl -valerate, 382, 389 Ethyl vinylacetate, 382, 389 Ethylenediamine-adipic acid polymer, 1019,1025 Ethylene glycol, 285 Ethylene glycol, monoalkyl ethers of, 170, 444... 

Decomposition of Glycol Monoalkyl Ethers 2RMgX + CjHsOCHjCOjCjH, C,H,OCH,C(OH)R,... 

A large number of symmetrical diaryl- or dialkyl-acetaldehydes, difficult to obtain by other means, have been prepared by the reaction of ethyl ethoxyacetate, or ethyl phenoxyacetate, with Grignard reagents followed by treatment of the resulting glycol monoalkyl ether with anhydrous oxalic acid or dilute sulfuric acid. The yield in the first step is 40-80%, and the yield in the subsequent transformation is 50-80%. 

Certain diethers of the type ROCHaCH OR have been prepared by adding alkyl halides to a solution of sodium in excess ethylene glycol monoalkyl ether, as in the preparation of ethylene glycol dimethyl ether (78%). Chloromethyl methyl ether and alcohols react to give an acetal derivative of formaldehyde, CHjOCHjOR the reaction is carried out in the presence of pyridine. Aromatic diethers such as 2-methoxydiphenyl ether have been prepared by the Ullmann procedure. ... 

Ethylene glycol monoalkyl ethers are not manufactured as pure compounds but must be separated from the diethers and higher glycols (NTP 1993 NIOSH 1990). There are two common methods of producing... 

Browning RG, Curry SC. 1994. Clinical toxicology of ethylene glycol monoalkyl ethers. Human Exper Toxicol 13(5) 325-335. 

Nagano K, Nakayama E, Kayno M, et al. 1979. Mouse testicular atrophy induced by ethylene glycol monoalkyl ethers. Jap J Ind Health 21 29-35. 

Romer KG, Balge F, Freundt KJ. 1985. Ethanol-induced accumulation of ethylene glycol monoalkyl ethers in rats. Drug Chem Toxicol 8(4) 255-264. 

Smallwood AW, DeBord KE, Lowry LK. 1984. Analyses of ethylene glycol monoalkyl ethers and their proposed metabolites in blood and urine. Environ Health Perspect 57 249-253. 

TylerTR. 1982. Review of ethylene glycol monobutylether toxicity testing. Union Carbide corporation report. In The toxicology of ethylene glycol monoalkyl ethers and its relevance to man. (ECETOC Technical Report No. 4), ECETOC, Brussels. 

INFRARED SPECTRA AND ROTATIONAL ISOMERISM OF MONO-, DI-, AND TRI-ETHYLENE GLYCOL MONOALKYL ETHERS. SRINIVASANTKK JOSE Cl BISWAS A B... 

Figure 19.5. The logarithm of the CMC (molar concentration) versus the number of carbons in the alkyl chain for various octa(ethylene glycol)monoalkyl ethers at different temperatures. From top to bottom, the temperatures are 15.0, 20.0, 25.0, 30.0 and 40.0°C. (Redrawn from K. Meguro, M. Ueno and K. Esumi, in Nonionic Surfactants Physical Chemistry, M. J. Schick (Ed.), Marcel Dekker, New York, 1987, p. 134)...

Ethylene glycol monoalkyl ether, H0CH2 CH20R R = He, Et, Pr. 

Melting point of quaternary salt must be substantially below the reaction temperature (220 C). Ethylene glycol monoalkyl ether, HOCH2CH2OR R=Me, Et. 

Liquid product analysis by glc, also detected water, alkyl formates, butanols, acetaldehyde, 2-methyl-l,3-dioxolane, dialkyl ethers, glycol monoalkyl ethers and ethylene glycol CO2 and CH4 present in the product gas samples, along with larger quantities of unreacted CO/H2. 

Colloid Polymer Science 278, No.9, Sept. 2000, p.821-9 MICROEMULSION POLYMERISATION OF STYRENE STABILIZED BY SODIUM DODECYL SULPHATE AND DIETHYLENE GLYCOL MONOALKYL ETHER Chem C S Liu C W... 

Diethylene glycol monoalkyl ether was used as a cosurfactant in the formation of an oil-in-water styrene microemulsion. Sodium dodecyl sulphate was used as a surfactant. The pseudo three-component phase diagram, macroemulsion, microemulsion and lamellar gal phases, was constructed for the cosurfactants. A smaller number of latex particles nucleated than there were microemulsion droplets initially present. The diethylene glycol monoalkyl ether group of CiEj enhances the latex stability and the CiEj more effectively stabihses the styrene microemulsion and subsequent polymerisation compared with CiOH cosurfactants used as a comparison. 15 refs. 

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

Bis(4 -hydroxyphenyl)propane, diphenyl carbonate, and polyethylene glycol monooctadecyl ether were treated in the presence of 4-N,N-dimethylaminopyridine at 180-270 °C for 3 h to give an aromatic polycarbonate terminated with polyethylene glycol monoalkyl ether groups with an average molecular weight of 51,200 [272]. 

Ethylene oxide (EO), propylene oxide (PO), and butylene oxide (BO) can be polymerized to polyethylene glycols (PEGs), polypropylene glycols, and polybutylene glycols. In addition, however, mixtures of the foregoing epoxides can be polymerized with one another, whereupon we obtain a random polymer. In addition to water, alcohols, phenols, amines, and so forth can be used for the starting molecule (i.e., variation of R in reaction (1)). When alcohols are employed, polyethylene glycol monoalkyl ether is obtained. 

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