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Edelmann, M. ; Gedan-Smolka, M. ; Heinrich, G. ; Lehmann, D.
Thermokinetic analysis of two-step curing reactions in melt - Part I. Investigation of low molecular model systems

Kinetic investigations of thermo-controlled two-step reactions between an uretdione cross-linker and OH-groups are undertaken. Non-isothermal DSC measurements are chosen for the determination of the kinetic parameters (E, A, n) using of THERMOKINETICS software. The system can be described very accurately with a four-step kinetic model of consecutive reactions. On the basis of the kinetic model and parameters the realization of the first reaction step, which is the formation of the allophanate network is simulated. Finally, the result of the calculated progress of the reaction is evaluated by FT-IR and isothermal DSC measurements.

Source
Thermochimica Acta 452, 59-64

DOI
http://dx.doi.org/10.1016/j.tca.2006.10.006

Published
January 2007
 
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