Abstract

The solubility parameter δ 2 and its components of broad and narrow distributed alcohol oxyethylates were determined by inverse gas chromatography. Corrected values of the solubility parameter δ T were calculated from the increments of the solubility parameter corresponding to different types of intermolecular solute-solvent interactions. The corrected value of solubility parameter is always lower than that obtained directly from Guillet and co-workers' procedure. The influence of the structure of the examined oxyethylates on the solubility parameter and its components is discussed. Narrow range distributed oxyethylates are characterized by lower values of the solubility parameters than broad range products, but the difference decreases with increase in the average oxyethylation ratio. The increase in the length of oxyethylene chain increases the solubility parameter. The solubility parameter decreases with increase in temperature. Temperature and structural dependences of the solubility parameter increments are also presented and discussed. Relationships between the solubility parameter, corrected solubility parameter, its components and polarity parameters are examined.

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