Abstract
AbstractThe relative reaction constants for the base‐catalyzed ethoxylation of primary straight chain alcohols have been determined for the unreacted alcohol and the first three ethylene oxide adducts. The distribution of the ethoxylates was found using molecular distillation, nuclear magnetic resonance analysis and gas liquid partition chromatography.A mathematical model describing the distributions was set up and programmed on a 7090 digital computer. Solution of the program gave the relative reaction constants for the alcohol and the first three adducts.The relative reactivities of the adducts in the base‐catalyzed ethoxylation of primary straight chain alcohols are shown to increase with adduct number, but tend to a constant value as the adduct number increases. Results also show that alcohols from C6 to C18 are equally reactive to ethylene oxide on a molar basis.
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