Tailor-Made Bio-Based Non-Isocyanate Polyurethanes (NIPUs)
Non-isocyanate polyurethanes (NIPUs) based on biobased polyamines and polycarbonates are a sustainable alternative to conventional polyurethanes (PU). This article discloses a novel method to control the crosslinking density of fully biobased isocyanate-free polyurethanes, synthesized from triglycer...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/6/1589 |
| _version_ | 1797609258455400448 |
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| author | Juan Catalá Irene Guerra Jesús Manuel García-Vargas María Jesús Ramos María Teresa García Juan Francisco Rodríguez |
| author_facet | Juan Catalá Irene Guerra Jesús Manuel García-Vargas María Jesús Ramos María Teresa García Juan Francisco Rodríguez |
| author_sort | Juan Catalá |
| collection | DOAJ |
| description | Non-isocyanate polyurethanes (NIPUs) based on biobased polyamines and polycarbonates are a sustainable alternative to conventional polyurethanes (PU). This article discloses a novel method to control the crosslinking density of fully biobased isocyanate-free polyurethanes, synthesized from triglycerides carbonated previously in scCO<sub>2</sub> and different diamines, such as ethylenediamine (EDA), hexamethylenediamine (HMDA) and Priamine<sup>TM</sup>-1075 (derived from a dimerized fatty acid). As capping substances, water or bioalcohols are used in such a way that the crosslinking density can be adjusted to suit the requirements of the intended application. An optimization of the NIPU synthesis procedure is firstly carried out, establishing the polymerization kinetics and proposing optimal conditions set for the synthesis of the NIPUs. Then, the influence of the partial blocking of the active polymerization sites of the carbonated soybean oil (CSBO), using monofunctional amines, on the physical properties of the NIPUS is explored. Finally, the synthesis of fully biobased NIPUs with a targeted crosslinking density is achieved using hybrid NIPUs, employing partially carbonated oil and H<sub>2</sub>O or ethanol as blockers to achieve the desired physical properties in a very precise manner. |
| first_indexed | 2024-03-11T05:58:57Z |
| format | Article |
| id | doaj.art-2a54b8e64f99411092f840cc16a1d658 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T05:58:57Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-2a54b8e64f99411092f840cc16a1d6582023-11-17T13:27:39ZengMDPI AGPolymers2073-43602023-03-01156158910.3390/polym15061589Tailor-Made Bio-Based Non-Isocyanate Polyurethanes (NIPUs)Juan Catalá0Irene Guerra1Jesús Manuel García-Vargas2María Jesús Ramos3María Teresa García4Juan Francisco Rodríguez5Department of Chemical Engineering, Institute of Chemical and Environmental Technology, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, SpainDepartment of Chemical Engineering, Institute of Chemical and Environmental Technology, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, SpainDepartment of Chemical Engineering, Institute of Chemical and Environmental Technology, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, SpainDepartment of Chemical Engineering, Institute of Chemical and Environmental Technology, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, SpainDepartment of Chemical Engineering, Institute of Chemical and Environmental Technology, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, SpainDepartment of Chemical Engineering, Institute of Chemical and Environmental Technology, University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071 Ciudad Real, SpainNon-isocyanate polyurethanes (NIPUs) based on biobased polyamines and polycarbonates are a sustainable alternative to conventional polyurethanes (PU). This article discloses a novel method to control the crosslinking density of fully biobased isocyanate-free polyurethanes, synthesized from triglycerides carbonated previously in scCO<sub>2</sub> and different diamines, such as ethylenediamine (EDA), hexamethylenediamine (HMDA) and Priamine<sup>TM</sup>-1075 (derived from a dimerized fatty acid). As capping substances, water or bioalcohols are used in such a way that the crosslinking density can be adjusted to suit the requirements of the intended application. An optimization of the NIPU synthesis procedure is firstly carried out, establishing the polymerization kinetics and proposing optimal conditions set for the synthesis of the NIPUs. Then, the influence of the partial blocking of the active polymerization sites of the carbonated soybean oil (CSBO), using monofunctional amines, on the physical properties of the NIPUS is explored. Finally, the synthesis of fully biobased NIPUs with a targeted crosslinking density is achieved using hybrid NIPUs, employing partially carbonated oil and H<sub>2</sub>O or ethanol as blockers to achieve the desired physical properties in a very precise manner.https://www.mdpi.com/2073-4360/15/6/1589NIPUtailor-madecrosslinkcyclic carbonateCSBOpriamine |
| spellingShingle | Juan Catalá Irene Guerra Jesús Manuel García-Vargas María Jesús Ramos María Teresa García Juan Francisco Rodríguez Tailor-Made Bio-Based Non-Isocyanate Polyurethanes (NIPUs) Polymers NIPU tailor-made crosslink cyclic carbonate CSBO priamine |
| title | Tailor-Made Bio-Based Non-Isocyanate Polyurethanes (NIPUs) |
| title_full | Tailor-Made Bio-Based Non-Isocyanate Polyurethanes (NIPUs) |
| title_fullStr | Tailor-Made Bio-Based Non-Isocyanate Polyurethanes (NIPUs) |
| title_full_unstemmed | Tailor-Made Bio-Based Non-Isocyanate Polyurethanes (NIPUs) |
| title_short | Tailor-Made Bio-Based Non-Isocyanate Polyurethanes (NIPUs) |
| title_sort | tailor made bio based non isocyanate polyurethanes nipus |
| topic | NIPU tailor-made crosslink cyclic carbonate CSBO priamine |
| url | https://www.mdpi.com/2073-4360/15/6/1589 |
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