| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5207851 | Polymer Testing | 2006 | 7 Pages |
Abstract
A method for the determination and quantification of epoxide equivalent weights (EEW) and average functionality (F¯n) of different liquid and solid epoxy resins using gel permeation chromatography (GPC) and 1H-NMR spectrometry is described. Good correlations between GPC and 1H-NMR data were obtained regarding the estimation of the oligomers content within the epoxy resin compositions. Dependencies of average functionality against the polymerization degree and average-number molecular mass were pointed out and, subsequently, the EEW was calculated and compared with chemical analysis and suppliers data for all the epoxy resins studied.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Sorina-Alexandra Garea, Andreea-Cristina Corbu, Calin Deleanu, Horia Iovu,