Ester ethoxylates description

FIG. 13 Fabric detergency performance of methyl ester ethoxylate vs. conventional surfactants. (Conditions, test method, and protocol described elsewhere [15], descriptions of reference surfactants are given in Table 1 distribution for C -is methyl ester = 57% C12, 23% C14, 12% Cig, and 8% Cig MEEs prepared using calcium/aluminum alkoxide catalyst. (From Ref. 27.)... 

Description. This class of surfactants is a subcategory of the above surfactant group based on carboxylic acids they are monoesters of di- and tricarboxylic acids. These esters are produced by condensation reactions involving different types of molecule either an alcohol with a polycarboxylic acid (e.g., tartric or citric acid), or an hydroxyacid (e.g., lactic acid) with a carboxylic acid. The reacting alcohol may have been previously ethoxylated. 

Description. This class of surfactants essentially covers ethoxylated derivatives of lanolin (wool fat) and castor oil. Lanolin is the generic name of a wax containing a complex mixture of esters and polyesters of high-molecular-weight alcohols (aliphatic, steroid, and triterpenoid) and fatty acids (saturated, unsaturated, hydroxylated, and non-hydroxylated). The ethoxylation is carried out on fractionation products of lanolin (lower aliphatic alcohols and sterols). 

Description. Surfactants of this class are better known as sugar esters or sucrose esters. The sucrose esters are obtained by transesterification of sucrose with fatty acid methyl esters or triglycerides, leaving methanol or glycerol as by-products, respectively- Mono- and diesters are the major products. Due to the steric effects,-primary hydroxyl groups are almost exclusively subject to esterification. Both types of esters exhibit the general properties of common nonionics (i.e., ethoxylated alcohols). 

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