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Energy dissipating poly(hydroxyurethane) elastomers – Synthesis, characterization and comparison with shear thickening fluid materials

In this article we report preparation and characterization of cross-linked non-isocyanate poly(hydroxyurethane) polymeric materials showing energy-dissipating properties. The materials were obtained by the ring-opening polyaddition reaction of hyperbranched multi(cyclic carbonate) (HBPG2) with vario...

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Published in:Polymer (Guilford) 2021-09, Vol.230, p.124084, Article 124084
Main Authors: Świderska, Aleksandra, Parzuchowski, Paweł G., Żurowski, Radosław, Więcław-Midor, Anna, Wołosz, Dominik
Format: Article
Language:English
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Summary:In this article we report preparation and characterization of cross-linked non-isocyanate poly(hydroxyurethane) polymeric materials showing energy-dissipating properties. The materials were obtained by the ring-opening polyaddition reaction of hyperbranched multi(cyclic carbonate) (HBPG2) with various diamines. The hyperbranched multi(cyclic carbonate) was obtained in two step procedure including anionic polymerization of glycidol with trimethylolpropane (TMP) as a core yielding polyglycerol (HBPG1) and reaction of terminal vicinal hydroxyl groups of HBPG1 with dimethyl carbonate in the presence of potassium carbonate. HBPG1 and HBPG2 were characterized using various NMR techniques, FTIR and MALDI-ToF mass spectroscopy. Thermal and mechanical properties of elastomers, including dissipated energy capacity have been studied. Analysis of force absorbing efficiency test results showed that synthesized elastomers have the capability to dissipate about 60% of the energy. The energy dissipating properties of obtained poly(hydroxyurethane) elastomers were similar to those of shear thickening fluid materials that are currently used in human body protectors, in vibration damping devices or sound insulations. The article proves that it is possible to obtain advanced engineering materials using environmentally friendly materials. [Display omitted] •Crosslinked isocyanate-free poly(hydroxyurethane)s based on hyperbranched polyglycerol.•Energy dissipating application of poly(hydroxyurethane).•Comparison of the energy dissipation capacity of elastomers and shear thickening fluids.
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2021.124084