설명(영) |
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Alkoxylated Carboxylic Acids are formed when a Carboxylic Acid is reacted with an alkylene oxide or with a preformed Polymeric Ether. The resulting product may be a monoester or a diester or a mixture of the two, depending on the reaction conditions. Their general structures are:
where RCO- represents a carboxylic acid radical, where X is hydrogen or lower alkyl, and where n represents the number of polymerized alkoxyl groups. In the case of diesters, the two RCO- groups need not be identical.
Alkoxylated Carboxylic Acids are Esters, as well as Ethers, and also, in the case of monoesters, Alcohols. Although these esters are subject to hydrolysis, they possess adequate stability for wide use in cosmetics.
Alkoxylated Carboxylic Acids serve as emollients, emulsifiers, solubilizers, and suspending agents in a wide variety of finished products. Typical representatives include PEG-6 Isostearate and PPG-17 Dioleate. |