Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening Polymerization
Lignin-based polyols (LBPs) with controlled microstructure were obtained by cationic ring opening polymerization (CROP) of oxiranes in an organosolv lignin (OL) tetrahydrofuran (THF) solution. The control on the microstructure and consequently on the properties of the LBPs such as hydroxyl number, a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/4/651 |
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| author | Jonatan Perez-Arce Ander Centeno-Pedrazo Jalel Labidi Jose R. Ochoa-Gomez Eduardo J. Garcia-Suarez |
| author_facet | Jonatan Perez-Arce Ander Centeno-Pedrazo Jalel Labidi Jose R. Ochoa-Gomez Eduardo J. Garcia-Suarez |
| author_sort | Jonatan Perez-Arce |
| collection | DOAJ |
| description | Lignin-based polyols (LBPs) with controlled microstructure were obtained by cationic ring opening polymerization (CROP) of oxiranes in an organosolv lignin (OL) tetrahydrofuran (THF) solution. The control on the microstructure and consequently on the properties of the LBPs such as hydroxyl number, average molecular weight, melting, crystallization and decomposition temperatures, are crucial to determine the performance and application of the derived-products. The influence of key parameters, for example, molar ratio between the oxirane and the hydroxyl groups content in OLO, initial OL concentration in THF, temperature, specific flow rate and oxirane nature has been investigated. LBPs with hydroxyl numbers from 35 to 217 mg KOH/g, apparent average M<sub>w</sub> between 5517 and 52,900 g/mol and melting temperatures from −8.4 to 18.4 °C were obtained. The CROP procedure allows obtaining of tailor-made LBPs for specific applications in a very simple way, opening the way to introduce LBPs as a solid alternative to substitute currently used fossil-based polyols. |
| first_indexed | 2024-03-09T00:38:53Z |
| format | Article |
| id | doaj.art-d39347d5d2ca400b95890c87679b0c87 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T00:38:53Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-d39347d5d2ca400b95890c87679b0c872023-12-11T18:00:08ZengMDPI AGPolymers2073-43602021-02-0113465110.3390/polym13040651Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening PolymerizationJonatan Perez-Arce0Ander Centeno-Pedrazo1Jalel Labidi2Jose R. Ochoa-Gomez3Eduardo J. Garcia-Suarez4TECNALIA, Basque Research and Technology Alliance (BRTA), Alava Technology Park, Leonardo da Vinci 11, 01510 Vitoria-Gasteiz, SpainTECNALIA, Basque Research and Technology Alliance (BRTA), Alava Technology Park, Leonardo da Vinci 11, 01510 Vitoria-Gasteiz, SpainBiorefinery Processes Research Group, Department of Chemical and Environmental Engineering, University of Basque Country UPV/EHU, Plaza Europa 1, 20018 Donostia-San Sebastián, SpainTECNALIA, Basque Research and Technology Alliance (BRTA), Alava Technology Park, Leonardo da Vinci 11, 01510 Vitoria-Gasteiz, SpainTECNALIA, Basque Research and Technology Alliance (BRTA), Alava Technology Park, Leonardo da Vinci 11, 01510 Vitoria-Gasteiz, SpainLignin-based polyols (LBPs) with controlled microstructure were obtained by cationic ring opening polymerization (CROP) of oxiranes in an organosolv lignin (OL) tetrahydrofuran (THF) solution. The control on the microstructure and consequently on the properties of the LBPs such as hydroxyl number, average molecular weight, melting, crystallization and decomposition temperatures, are crucial to determine the performance and application of the derived-products. The influence of key parameters, for example, molar ratio between the oxirane and the hydroxyl groups content in OLO, initial OL concentration in THF, temperature, specific flow rate and oxirane nature has been investigated. LBPs with hydroxyl numbers from 35 to 217 mg KOH/g, apparent average M<sub>w</sub> between 5517 and 52,900 g/mol and melting temperatures from −8.4 to 18.4 °C were obtained. The CROP procedure allows obtaining of tailor-made LBPs for specific applications in a very simple way, opening the way to introduce LBPs as a solid alternative to substitute currently used fossil-based polyols.https://www.mdpi.com/2073-4360/13/4/651lignin upgradinglignin-based polyolscontrolled microstructurebiomass valorization |
| spellingShingle | Jonatan Perez-Arce Ander Centeno-Pedrazo Jalel Labidi Jose R. Ochoa-Gomez Eduardo J. Garcia-Suarez Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening Polymerization Polymers lignin upgrading lignin-based polyols controlled microstructure biomass valorization |
| title | Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening Polymerization |
| title_full | Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening Polymerization |
| title_fullStr | Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening Polymerization |
| title_full_unstemmed | Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening Polymerization |
| title_short | Lignin-Based Polyols with Controlled Microstructure by Cationic Ring Opening Polymerization |
| title_sort | lignin based polyols with controlled microstructure by cationic ring opening polymerization |
| topic | lignin upgrading lignin-based polyols controlled microstructure biomass valorization |
| url | https://www.mdpi.com/2073-4360/13/4/651 |
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