Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical response
This work reports on the synthesis of non-isocyanate polyurethanes (NIPUs) obtained via the polyaddition of diamines: dimer fatty acid-derived diamine (DFA diamine) or polyether diamine (PPO diamine) with five-membered tri(cyclic carbonate) by a pre-polymerization method. The obtained NIPUs were fur...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Budapest University of Technology
2024-01-01
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| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0012701&mi=cd |
| _version_ | 1797634554372030464 |
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| author | Piotr Stachak Izabela Łukaszewska Jan Ozimek Konstantinos Nikolaou Raftopoulos Artur Bukowczan Edyta Hebda Carlos Bujalance Calduch Krzysztof Pielichowski |
| author_facet | Piotr Stachak Izabela Łukaszewska Jan Ozimek Konstantinos Nikolaou Raftopoulos Artur Bukowczan Edyta Hebda Carlos Bujalance Calduch Krzysztof Pielichowski |
| author_sort | Piotr Stachak |
| collection | DOAJ |
| description | This work reports on the synthesis of non-isocyanate polyurethanes (NIPUs) obtained via the polyaddition of diamines: dimer fatty acid-derived diamine (DFA diamine) or polyether diamine (PPO diamine) with five-membered tri(cyclic carbonate) by a pre-polymerization method. The obtained NIPUs were further chemically modified by polyhedral oligomeric silsesquioxane (POSS) – glycidylisobutyl POSS (1epPOSS). The resulting reinforced composites, containing 5, 10 or 15 wt% 1epPOSS, were characterized in terms of their structure (FTIR, NMR, XRD), microstructure (SEM-EDS) and thermo-mechanical properties (DMA). FTIR confirmed the formation of polyurethanes, and NMR proved the chemical incorporation of 1epPOSS. XRD and SEM-EDS showed a uniform distribution of 1epPOSS in the matrix for low 1epPOSS concentration, with some agglomeration effects depending on the concentration of 1epPOSS. DMA indicated mechanical reinforcement of NIPUs based on DFA diamine. For NIPUs synthesized with PPO diamine, the composite with the highest 1epPOSS loading (15 wt%) exhibited superior mechanical properties in comparison to the pristine matrix, confirmed by both DMA and static stretching test. |
| first_indexed | 2024-03-11T12:10:20Z |
| format | Article |
| id | doaj.art-03ad499dba214e9a83b36bb223dc383f |
| institution | Directory Open Access Journal |
| issn | 1788-618X |
| language | English |
| last_indexed | 2024-03-11T12:10:20Z |
| publishDate | 2024-01-01 |
| publisher | Budapest University of Technology |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj.art-03ad499dba214e9a83b36bb223dc383f2023-11-07T14:29:52ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2024-01-0118122610.3144/expresspolymlett.2024.2Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical responsePiotr StachakIzabela ŁukaszewskaJan OzimekKonstantinos Nikolaou RaftopoulosArtur BukowczanEdyta HebdaCarlos Bujalance CalduchKrzysztof PielichowskiThis work reports on the synthesis of non-isocyanate polyurethanes (NIPUs) obtained via the polyaddition of diamines: dimer fatty acid-derived diamine (DFA diamine) or polyether diamine (PPO diamine) with five-membered tri(cyclic carbonate) by a pre-polymerization method. The obtained NIPUs were further chemically modified by polyhedral oligomeric silsesquioxane (POSS) – glycidylisobutyl POSS (1epPOSS). The resulting reinforced composites, containing 5, 10 or 15 wt% 1epPOSS, were characterized in terms of their structure (FTIR, NMR, XRD), microstructure (SEM-EDS) and thermo-mechanical properties (DMA). FTIR confirmed the formation of polyurethanes, and NMR proved the chemical incorporation of 1epPOSS. XRD and SEM-EDS showed a uniform distribution of 1epPOSS in the matrix for low 1epPOSS concentration, with some agglomeration effects depending on the concentration of 1epPOSS. DMA indicated mechanical reinforcement of NIPUs based on DFA diamine. For NIPUs synthesized with PPO diamine, the composite with the highest 1epPOSS loading (15 wt%) exhibited superior mechanical properties in comparison to the pristine matrix, confirmed by both DMA and static stretching test.http://www.expresspolymlett.com/letolt.php?file=EPL-0012701&mi=cd nanocomposites prepolymer polyurethane matrix nanoparticle dynamic mechanical analysis |
| spellingShingle | Piotr Stachak Izabela Łukaszewska Jan Ozimek Konstantinos Nikolaou Raftopoulos Artur Bukowczan Edyta Hebda Carlos Bujalance Calduch Krzysztof Pielichowski Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical response eXPRESS Polymer Letters nanocomposites prepolymer polyurethane matrix nanoparticle dynamic mechanical analysis |
| title | Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical response |
| title_full | Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical response |
| title_fullStr | Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical response |
| title_full_unstemmed | Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical response |
| title_short | Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical response |
| title_sort | isocyanate free fabrication of sustainable polyurethane poss hybrid materials with tunable thermo mechanical response |
| topic | nanocomposites prepolymer polyurethane matrix nanoparticle dynamic mechanical analysis |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0012701&mi=cd |
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