Near- and mid-infrared spectroscopy studies of an epoxy reactive system

被引：145
|
作者：
Poisson, N
Lachenal, G
Sautereau, H
机构：
[1] INST NATL SCI APPL,MAT MACROMOL LAB,URA CNRS 507,F-69622 VILLEURBANNE,FRANCE
[2] UNIV LYON 1,LAB ETUDE MAT PLAST & BIOMAT,URA CNRS 507,F-69622 VILLEURBANNE,FRANCE
来源：
VIBRATIONAL SPECTROSCOPY | 1996年 / 12卷 / 02期
关键词：
epoxy reactive system; near- and mid-infrared spectroscopy;
D O I：
10.1016/0924-2031(96)00027-6
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Near- and mid- infrared spectroscopy techniques were used to study the cure reaction of accelerated diphenyldimethylurea (Diuron) epoxy formulation based on diglycidyl ether of bisphenol A (DGEBA) prepolymer curing with dicyandiamide (DDA) hardener. This study was carried out using a classic Fourier transform infrared spectrometer generally available in many laboratories, and it revealed the possibilities and problems that occurred in quantitative analysis. Thus, new assignments in NIR range and light scattering influence for this heterogeneous system are studied. Molar absorption change and comparison of the epoxy conversion determined by NIR spectroscopy (4530 cm(-1) epoxy band), MIR spectroscopy (915 cm(-1) epoxy band), SEC, and chemical titration are then successively presented and discussed.
引用
收藏
页码：237 / 247
页数：11
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