DSC-TG studies on kinetics of curing and thermal decomposition of epoxy–ether amine systems

The cure behavior of diglycidyl ether of bisphenol A with a simple ether amine (4,7,10, trioxa -1,13, tridecane diamine), system I and a polyether amine (polypropylene glycol block polyethylene glycol block polypropylene glycol bis 2 amino propyl ether), system II was compared by Differential Scanni...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2013-04, Vol.112 (1), p.201-208
Main Authors: Supriya, N., Catherine, Korah Bina, Rajeev, R.
Format: Article
Language:English
Subjects:
Amines
Analytical Chemistry
Bisphenol-A
Calorimetry
Chemistry
Chemistry and Materials Science
Comparative analysis
Epoxy resins
Inorganic Chemistry
Measurement Science and Instrumentation
Medical research
Medicine, Experimental
Physical Chemistry
Polymer Sciences
Polyols
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Summary:The cure behavior of diglycidyl ether of bisphenol A with a simple ether amine (4,7,10, trioxa -1,13, tridecane diamine), system I and a polyether amine (polypropylene glycol block polyethylene glycol block polypropylene glycol bis 2 amino propyl ether), system II was compared by Differential Scanning Calorimetry. The exothermicity of the curing reaction of system I is higher than that of system II (316 ± 15 J g −1 for System I and 230 ± 15 J g −1 for system II). Kinetic parameters viz., activation energy, pre-exponential factor, and rate constant for curing were evaluated by Kissinger method and Kissinger–Akahira–Sunose isoconversion method. Both systems showed low glass transition temperatures and System II shows a much lower T g (−38 °C) than system I (26 °C). The thermogravimetric analysis of the two cured epoxy amine systems showed comparable thermal stability.
ISSN:1388-6150
1588-2926
1572-8943
DOI:10.1007/s10973-012-2805-5