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Comparative gel permeation chromatography calibration techniques in oxidative coupling polymerization
Author(s) -
Revillon A.,
St. Pierre L. E.
Publication year - 1970
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1970.070140212
Subject(s) - gel permeation chromatography , polymerization , dispersity , permeation , elution , chemistry , molar mass distribution , chromatography , kinetics , degree of polymerization , polymer chemistry , oxidative coupling of methane , calibration curve , materials science , organic chemistry , catalysis , polymer , membrane , biochemistry , quantum mechanics , physics , detection limit
Gel 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 polymerization.