Kinetics of curing of diane and aliphatic epoxy oligomer blends: IR-spectroscopy study |
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| Authors: | A E Chalykh E S Zhavoronok E F Kolesnikova Yu V Kostina G N Bondarenko |
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| Institution: | 1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia
2. Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 27, Moscow, 119991, Russia
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| Abstract: | The curing of diane and aliphatic epoxy oligomers and their blends is studied by IR spectroscopy. Methods for the quantitative determination of epoxy groups in diane and aliphatic oligomers and their blends during curing are developed. It is shown that, during the joint curing of epoxy oligomers, the reactivity of a more active (diane) oligomer remains practically the same, whereas the reactivity of a less active (aliphatic) epoxy oligomer increases. The rate constants for the consumption of epoxy groups of oligomers and primary amine groups of the curing agent are determined. |
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