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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| Published in: | Molecules (Basel, Switzerland) Vol. 27; no. 15; p. 4885 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
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| ISSN: | 1420-3049, 1420-3049 |
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| Abstract | 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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| AbstractList | 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. 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.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. |
| Author | Burkart, Michael D. Hai, Thien An Phung Rajput, Bhausaheb S. |
| AuthorAffiliation | Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093-0358, USA; bsrajput@ucsd.edu (B.S.R.); h1phung@ucsd.edu (T.A.P.H.) |
| AuthorAffiliation_xml | – name: Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093-0358, USA; bsrajput@ucsd.edu (B.S.R.); h1phung@ucsd.edu (T.A.P.H.) |
| Author_xml | – sequence: 1 givenname: Bhausaheb S. surname: Rajput fullname: Rajput, Bhausaheb S. – sequence: 2 givenname: Thien An Phung surname: Hai fullname: Hai, Thien An Phung – sequence: 3 givenname: Michael D. orcidid: 0000-0002-4472-2254 surname: Burkart fullname: Burkart, Michael D. |
| BackLink | https://www.osti.gov/biblio/1879242$$D View this record in Osti.gov |
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| Cites_doi | 10.1007/s10965-018-1578-3 10.1039/D0GC00852D 10.1039/C2PY00452F 10.1002/pen.24633 10.1021/acscatal.0c05419 10.3390/ma3125097 10.1016/j.polymer.2010.06.012 10.1021/acs.chemrev.5b00264 10.1038/s41578-021-00407-8 10.1021/acssuschemeng.1c06008 10.1007/s11746-016-2903-9 10.1016/j.eurpolymj.2019.109422 10.1021/acs.biomac.0c01610 10.1002/app.43410 10.1002/macp.201600071 10.1039/D1GC00955A 10.1002/pola.29043 10.1002/pi.4330 10.1051/ocl/2016031 10.1039/C4GC00543K 10.1007/s11746-014-2587-y |
| ContentType | Journal Article |
| Copyright | 2022 by the authors. 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/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 2022 by the authors. 2022 |
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| SubjectTerms | Acids bio-carbon content Carbon Chemicals polyester polyols prototyping Spectrum analysis thermoplastic polyurethanes Vibration Viscosity |
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| Title | High Bio-Content Thermoplastic Polyurethanes from Azelaic Acid |
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