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Preparation and Thermal Stability of Elastomers Based on Irregular Poly(urethane-isocyanurate) Networks

Preparation and Thermal Stability of Elastomers Based on Irregular Poly(urethane-isocyanurate) Networks
The objective of this study was to investigate the thermal stability of poly(urethane-isocyanurate) networks with increasing amount of dangling chains. In order to improve thermal stability of elastomeric materials, networks were prepared by adding some heat resistant isocyanurate rings as a junction points by catalytic cyclotrimerisation of telechelic diisocyanates. The thermal degradation kinetics of samples has been studied by means of high-resolution thermal analyzer SDT Q600 TA Instruments, under nitrogen atmosphere. The activation energy for the two step reactions of thermal decomposition of different species was calculated and compared.
- Czech Academy of Sciences Czech Republic
- University of Niš Serbia
- National Academy of Sciences of Ukraine Ukraine
- University of Kragujevac Serbia
- University of Novi Sad Serbia
TGA, Polyurethanes, Isocyanurate ring, Polymer network, Elastomers, Activation energy, Thermal decomposition
TGA, Polyurethanes, Isocyanurate ring, Polymer network, Elastomers, Activation energy, Thermal decomposition
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