Isocyanate-free fabrication of sustainable polyurethane/POSS hybrid materials with tunable thermo-mechanical response
Authors:
- Piotr Stachak,
- Izabela Łukaszewska,
- Jan Ozimek,
- Konstantinos Nikolaou Raftopoulos,
- Artur Bukowczan,
- Edyta Hebda,
- Carlos Bujalance Calduch,
- Krzysztof Pielichowski
Abstract
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.
- Record ID
- CUT14dd646ab8e84806a48abf782decc59d
- Publication categories
- ;
- Author
- Journal series
- Express Polymer Letters, ISSN 1788-618X
- Issue year
- 2024
- Vol
- 18
- No
- 1
- Pages
- 2-26
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 24-26; Bibliografia (liczba pozycji) - 51; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 18, No. 1
- Keywords in English
- nanocomposites, prepolymer, polyurethane matrix, nanoparticle, dynamic mechanical analysis, non-isocyanate polyurethane
- ASJC Classification
- ; ; ; ;
- DOI
- DOI:10.3144/expresspolymlett.2024.2 Opening in a new tab
- URL
- http://www.expresspolymlett.com/issue.php?y=2024 Opening in a new tab
- Related project
- Nowe nanostrukturalne kompozyty hybrydowe poliuretan bezizocyjanianowy / funkcjonalizowany POSS. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 100
- Score source
- journalList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT14dd646ab8e84806a48abf782decc59d/
- URN
urn:pkr-prod:CUT14dd646ab8e84806a48abf782decc59d
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