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High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid

To realize the commercialization of sustainable materials, new polymers must be generated and systematically evaluated for material characteristics and end-of-life treatment. Polyester polyols made from renewable monomers have found limited adoption in thermoplastic polyurethane (TPU) applications,...

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Detalles Bibliográficos
Autores principales: Rajput, Bhausaheb S., Hai, Thien An Phung, Burkart, Michael D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370010/
https://www.ncbi.nlm.nih.gov/pubmed/35956835
http://dx.doi.org/10.3390/molecules27154885
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author Rajput, Bhausaheb S.
Hai, Thien An Phung
Burkart, Michael D.
author_facet Rajput, Bhausaheb S.
Hai, Thien An Phung
Burkart, Michael D.
author_sort Rajput, Bhausaheb S.
collection PubMed
description To realize the commercialization of sustainable materials, new polymers must be generated and systematically evaluated for material characteristics and end-of-life treatment. Polyester polyols made from renewable monomers have found limited adoption in thermoplastic polyurethane (TPU) applications, and their broad adoption in manufacturing may be possible with a more detailed understanding of their structure and properties. To this end, we prepared a series of bio-based crystalline and amorphous polyester polyols utilizing azelaic acid and varying branched or non-branched diols. The prepared polyols showed viscosities in the range of 504–781 cP at 70 °C, with resulting TPUs that displayed excellent thermal and mechanical properties. TPUs prepared from crystalline azelate polyester polyol exhibited excellent mechanical properties compared to TPUs prepared from amorphous polyols. These were used to demonstrate prototype products, such as watch bands and cup-shaped forms. Importantly, the prepared TPUs had up to 85% bio-carbon content. Studies such as these will be important for the development of renewable materials that display mechanical properties suitable for commercially viable, sustainable products.
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spelling pubmed-93700102022-08-12 High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid Rajput, Bhausaheb S. Hai, Thien An Phung Burkart, Michael D. Molecules Article To realize the commercialization of sustainable materials, new polymers must be generated and systematically evaluated for material characteristics and end-of-life treatment. Polyester polyols made from renewable monomers have found limited adoption in thermoplastic polyurethane (TPU) applications, and their broad adoption in manufacturing may be possible with a more detailed understanding of their structure and properties. To this end, we prepared a series of bio-based crystalline and amorphous polyester polyols utilizing azelaic acid and varying branched or non-branched diols. The prepared polyols showed viscosities in the range of 504–781 cP at 70 °C, with resulting TPUs that displayed excellent thermal and mechanical properties. TPUs prepared from crystalline azelate polyester polyol exhibited excellent mechanical properties compared to TPUs prepared from amorphous polyols. These were used to demonstrate prototype products, such as watch bands and cup-shaped forms. Importantly, the prepared TPUs had up to 85% bio-carbon content. Studies such as these will be important for the development of renewable materials that display mechanical properties suitable for commercially viable, sustainable products. MDPI 2022-07-30 /pmc/articles/PMC9370010/ /pubmed/35956835 http://dx.doi.org/10.3390/molecules27154885 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Rajput, Bhausaheb S.
Hai, Thien An Phung
Burkart, Michael D.
High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid
title High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid
title_full High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid
title_fullStr High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid
title_full_unstemmed High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid
title_short High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid
title_sort high bio-content thermoplastic polyurethanes from azelaic acid
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370010/
https://www.ncbi.nlm.nih.gov/pubmed/35956835
http://dx.doi.org/10.3390/molecules27154885
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