Determination of the epoxide equivalent weight (EEW) of epoxy resins with different chemical structure and functionality using GPC and 1H-NMR

被引：34

作者：

Garea, SA

Corbu, AC

Deleanu, C

Iovu, H

机构：

[1] Polytech Univ Bucharest, Dept Polymer Sci & Engn, Fac Appl Chem & Mat Sci, Bucharest 010072, Romania

[2] Romanian Acad, Inst Organ Chem, Bucharest, Romania

来源：

POLYMER TESTING | 2006年 / 25卷 / 01期

关键词：

epoxy resins; average functionality; epoxide equivalent weight;

D O I：

10.1016/j.polymertesting.2005.09.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A method for the determination and quantification of epoxide equivalent weights (EEW) and average functionality ((F) over bar (n)) of different liquid and solid epoxy resins using gel permeation chromatography (GPC) and H-1-NMR spectrometry is described. Good correlations between GPC and H-1-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. (c) 2005 Published by Elsevier Ltd.

引用

页码：107 / 113

页数：7

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