Thermal
and dynamic mechanical analysis of cross-linked poly(esterurethanes) |
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Authors: | Lidia Jasińska A Balas J T Haponiuk G Nowaczyk S Jurga |
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Institution: | (1) Faculty of Chemistry, Department of Polymer Technology, Gdańsk University of Technology, Gdańsk, Poland, 80-952, Narutowicza St 11/12;(2) Faculty of Physics, Department of Macromolecular Physics, Adam Mickiewicz University, Poznań, Poland, 61-614, Umultowska St 85 |
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Abstract: | New cross-linked poly(esterurethanes) (PEU) based on unsaturated olygo(alkyleneester)diol
(OAE), 4,4’-diphenylmethane diisocyanate (MDI) and styrene or methyl
methacrylate as curing monomers were prepared. The synthesis of PEU was performed
in two steps. In the first step OAE was obtained from adipic acid, maleic
anhydride and ethylene glycol. In the second step a prepolymer was obtained
in a reaction of OAE with different amounts of 4,4’-diphenylmethane
diisocyanate followed by crosslinking using previously mentioned curing monomers.
The influence of structure of the poly(esterurethanes) on thermal and dynamic
mechanical properties is studied. Thermogravimetric analysis shows that cross-linked
poly(esterurethanes) demonstrate high thermal stability. Moreover the dynamic
mechanical thermal analysis shows that the presence of styrene cross-linking
chains in polymers lead to the phase separation in cross-linked poly(esterurethanes). |
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Keywords: | dynamic-mechanical analysis poly(esterurethanes) thermal stability |
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