Comparative gel permeation chromatography calibration techniques in oxidative coupling polymerization

摘要

AbstractGel permeation chromatography was utilized in measuring the kinetics of the oxidative coupling polymerization of 2,6‐dimethylphenol. The elution curves at the early stages of reaction were analyzed by two methods of calibration, specifically by comparison to the elution times of oligomers up to the 6‐mer level, and by the classical counts method. The two methods give similar results, both indicating a polymerization pattern of the general condensation type and increasing dispersity of molecular weight with degree of polymerizat