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Epoxy resins based on trimethylolpropane. I. Determination of chemical structres
Author(s) -
Pellín M. Pazos,
Regueira L. Núñez,
Gándara J. Simal,
Losada P. Paseiro,
Lamela C. Pérez,
Abuín S. Paz
Publication year - 1995
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.1995.070550205
Subject(s) - trimethylolpropane , thermogravimetric analysis , epoxy , fourier transform infrared spectroscopy , monomer , gel permeation chromatography , polymer chemistry , mass spectrometry , materials science , chemistry , organic chemistry , chemical engineering , chromatography , polymer , engineering , polyurethane
The chemical structure of an aliphatic epoxy resin was studied by using gel permeation chromatography (GPC), Fourier transform infrared (FTIR), FTIR‐TGA (thermogravimetric analysis), mass spectrometry in fast atom bombardment (FAB) mode, and wet analysis. We found that when trimethylolpropane is used as starting monomer, only two OH groups are epoxidized. The resin and its different fractions have a functionality of two. Under the conditions of synthesis used by the supplier, three main products were found with masses of 246,339, and 430. No trifunctional product was detected. © 1995 John Wiley & Sons, Inc.