Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties

This study concerns bio-based urethane prepolymers. The relationship between the chemical structure and the thermal and processing parameters of bio-based isocyanate-terminated ether and ester-urethane prepolymers was investigated. Bio-based prepolymers were obtained with the use of bio-monomers suc...

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Autores principales:	Joanna Niesiobędzka, Ewa Głowińska, Janusz Datta
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ether-urethane prepolymer ester-urethane prepolymer bio-based diisocyanate chemical structure thermal analysis processing properties Biology (General) QH301-705.5 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/b3954273685c433497dd0c4c194d56e7
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id	oai:doaj.org-article:b3954273685c433497dd0c4c194d56e7
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spelling	oai:doaj.org-article:b3954273685c433497dd0c4c194d56e72021-11-25T17:54:20ZEco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties10.3390/ijms2222122071422-00671661-6596https://doaj.org/article/b3954273685c433497dd0c4c194d56e72021-11-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/22/12207https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067This study concerns bio-based urethane prepolymers. The relationship between the chemical structure and the thermal and processing parameters of bio-based isocyanate-terminated ether and ester-urethane prepolymers was investigated. Bio-based prepolymers were obtained with the use of bio-monomers such as bio-based diisocyanate, bio-based polyether polyol or polyester polyols. In addition to their composition, the bio-based prepolymers were different in the content of iso-cyanate groups content (ca. 6 and 8%). The process of pre-polymerization and the obtained bio-based prepolymers were analyzed by determining the content of unreacted NCO groups, Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, thermogravimetry, and rheological measurements. The research conducted facilitated the evaluation of the properties and processability of urethane prepolymers based on natural components. The results indicate that a significant impact on the processability has the origin the polyol ingredient as well as the NCO content. The thermal stability of all of the prepolymers is similar. A prepolymer based on a poly-ether polyol is characterized by a lower viscosity at a lower temperature than the prepolymer based on a polyester polyol. The viscosity value depends on the NCO content.Joanna NiesiobędzkaEwa GłowińskaJanusz DattaMDPI AGarticleether-urethane prepolymerester-urethane prepolymerbio-based diisocyanatechemical structurethermal analysisprocessing propertiesBiology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 12207, p 12207 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ether-urethane prepolymer ester-urethane prepolymer bio-based diisocyanate chemical structure thermal analysis processing properties Biology (General) QH301-705.5 Chemistry QD1-999
spellingShingle	ether-urethane prepolymer ester-urethane prepolymer bio-based diisocyanate chemical structure thermal analysis processing properties Biology (General) QH301-705.5 Chemistry QD1-999 Joanna Niesiobędzka Ewa Głowińska Janusz Datta Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties
description	This study concerns bio-based urethane prepolymers. The relationship between the chemical structure and the thermal and processing parameters of bio-based isocyanate-terminated ether and ester-urethane prepolymers was investigated. Bio-based prepolymers were obtained with the use of bio-monomers such as bio-based diisocyanate, bio-based polyether polyol or polyester polyols. In addition to their composition, the bio-based prepolymers were different in the content of iso-cyanate groups content (ca. 6 and 8%). The process of pre-polymerization and the obtained bio-based prepolymers were analyzed by determining the content of unreacted NCO groups, Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, thermogravimetry, and rheological measurements. The research conducted facilitated the evaluation of the properties and processability of urethane prepolymers based on natural components. The results indicate that a significant impact on the processability has the origin the polyol ingredient as well as the NCO content. The thermal stability of all of the prepolymers is similar. A prepolymer based on a poly-ether polyol is characterized by a lower viscosity at a lower temperature than the prepolymer based on a polyester polyol. The viscosity value depends on the NCO content.
format	article
author	Joanna Niesiobędzka Ewa Głowińska Janusz Datta
author_facet	Joanna Niesiobędzka Ewa Głowińska Janusz Datta
author_sort	Joanna Niesiobędzka
title	Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties
title_short	Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties
title_full	Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties
title_fullStr	Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties
title_full_unstemmed	Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties
title_sort	eco-friendly ether and ester-urethane prepolymer: structure, processing and properties
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b3954273685c433497dd0c4c194d56e7
work_keys_str_mv	AT joannaniesiobedzka ecofriendlyetherandesterurethaneprepolymerstructureprocessingandproperties AT ewagłowinska ecofriendlyetherandesterurethaneprepolymerstructureprocessingandproperties AT januszdatta ecofriendlyetherandesterurethaneprepolymerstructureprocessingandproperties
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Eco-Friendly Ether and Ester-Urethane Prepolymer: Structure, Processing and Properties

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