The determination of MM of polyols by gel permeation chromatography is not always applicable, especially for the range 500–1500. The paper outlines a method using freezing point depression in acetophenone and since both this solvent and most polyols are hygroscopic, the interference by residual and entrained moisture is overcome by the use of a 4A type molecular sieve.
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References
1.
Beilsteins Handbuch der Organischen Chemie, Hauptband 7, p. 271.
