Study of the influence of isomerism on the curing properties of the epoxy system DGEBA (n=0)/1,2 DCH by DEA and MDSC
| Autor: | Carlos Gracia-Fernández, S. Gómez-Barreiro, Lisardo Núñez-Regueira |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Bisphenol A
Diglycidyl ether Materials science Thermosetting polymer Epoxy Condensed Matter Physics chemistry.chemical_compound Differential scanning calorimetry chemistry visual_art Polymer chemistry visual_art.visual_art_medium Physical chemistry Physical and Theoretical Chemistry Thermal analysis Cis–trans isomerism Curing (chemistry) |
| Zdroj: | Journal of Thermal Analysis and Calorimetry. 82:797-801 |
| ISSN: | 1572-8943 1388-6150 |
| Popis: | Modulated differential scanning calorimetry (MDSC) and dielectric analysis (DEA) have been used to characterize the cure process of the system diglycidyl ether of bisphenol A (DGEBA(n=0)/1,2 diaminocyclohexane (1,2 DCH). The trans isomer and a mixture cis/trans(30-70% respectively) of 1,2 DCH were used to find their different behaviour. The study allowed to check the influence of the cisisomer on the thermoset curing process. Gelation times were obtained through the equation proposed by Johari and vitrification times from the point of inflection of the complex calorific capacity modulus. |
| Databáze: | OpenAIRE |
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