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Dicyandiamide analysis and solubility in epoxy resins
Author(s) -
Hagnauer Gary L.,
Dunn David A.
Publication year - 1981
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.1981.070260609
Subject(s) - epoxy , solubility , amine gas treating , hildebrand solubility parameter , chemistry , chemical engineering , materials science , polymer chemistry , organic chemistry , engineering
A simple procedure is described for the rapid, quantitative analysis of dicyandiamide in epoxy resins and epoxy resin prepregs. High performance liquid chromatography is used to analyze for dicyandiamide and to investigate the solubility behavior of dicyandiamide and 3‐( p ‐chlorophenyl)‐1,1‐dimethylurea (Monuron) in liquid epoxy resins. Solubility expressions and differential heats of solution are determined. The formation of soluble amine‐epoxy reaction products and epoxy resin additives such as Monuron are found to enhance the solubility of dicyandiamide.