Abstract
Ethoxylation of alcohols, alkylphenols, and alkylamines has been studied in the presence of a few catalytic systems. Distribution constants were computed. Broad-range distributed ethoxylates are formed in the presence of NaOH, and the distribution constants increase up to the homologue containing six oxyethylene units. Narrow-range distributed ethoxylates are formed in the presence of calcium-based catalysts. It is reflected in the values of the distribution constants because an increase with the growing number of oxyethylene units in successive homologue is not observed.
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Hreczuch, W., Szymanowski, J. Synthesis of surfactants with Narrow-range distribution of the polyoxyethylene chain. J Am Oil Chem Soc 73, 73–78 (1996). https://doi.org/10.1007/BF02523451
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DOI: https://doi.org/10.1007/BF02523451