Distearyl

Distearyl is a chemical term that typically refers to esters derived from stearic acid and a diol or a similar two-hydroxyl-containing molecule. Stearic acid is a common saturated fatty acid found in animal and vegetable fats. When stearic acid is esterified with a diol, it results in a molecule with two stearoyl groups attached to the diol backbone.

The specific properties and uses of distearyl compounds depend heavily on the nature of the diol used. For instance, distearyl phthalate, formed from phthalic acid and stearyl alcohol (which itself is derived from stearic acid), is used as a plasticizer. Other distearyl compounds might be employed as emulsifiers, lubricants, or emollients in cosmetic and personal care products due to the fatty acid chains providing emollient properties.

In the context of polymers, distearyl compounds can sometimes refer to ester linkages formed during polymerization processes where stearic acid or its derivatives are involved. These compounds are generally lipophilic, meaning they tend to dissolve in fats and oils, and are relatively stable. Their industrial applications are diverse, ranging from additives in plastics and rubbers to ingredients in waxes and polishes. The term "distearyl" itself is descriptive of the chemical structure, indicating the presence of two stearoyl moieties.