Lignin‐based polyols with controlled microstructure by cationic ring opening polymerization

Jonatan Perez‐arce; Ander Centeno‐pedrazo; Jalel Labidi; Jose R. Ochoa‐gomez; Eduardo J. Garcia‐suarez

doi:10.3390/polym13040651

Lignin‐based polyols with controlled microstructure by cationic ring opening polymerization

Jonatan Perez‐arce, Ander Centeno‐pedrazo, Jalel Labidi, Jose R. Ochoa‐gomez, Eduardo J. Garcia‐suarez

Tecnalia Research & Innovation

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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 Mw 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.

Original language	English
Article number	651
Pages (from-to)	1-12
Number of pages	12
Journal	Polymers
Volume	13
Issue number	4
DOIs	https://doi.org/10.3390/polym13040651 https://doi.org/10.3390/polym13040651
Publication status	Published - 22 Feb 2021

Keywords

Biomass valorization
Controlled microstructure
Lignin upgrading
Lignin‐based polyols

Project and Funding Information

Funding Info
Basque Government (grant KK-2019/00097)

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title = "Lignin‐based polyols with controlled microstructure by cationic ring opening polymerization",

abstract = "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 Mw 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.",

keywords = "Biomass valorization, Controlled microstructure, Lignin upgrading, Lignin‐based polyols",

author = "Jonatan Perez‐arce and Ander Centeno‐pedrazo and Jalel Labidi and Ochoa‐gomez, {Jose R.} and Garcia‐suarez, {Eduardo J.}",

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AU - Perez‐arce, Jonatan

AU - Centeno‐pedrazo, Ander

AU - Labidi, Jalel

AU - Ochoa‐gomez, Jose R.

AU - Garcia‐suarez, Eduardo J.

PY - 2021/2/22

Y1 - 2021/2/22

N2 - 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 Mw 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.

AB - 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 Mw 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.

KW - Biomass valorization

KW - Controlled microstructure

KW - Lignin upgrading

KW - Lignin‐based polyols

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ER -

Lignin‐based polyols with controlled microstructure by cationic ring opening polymerization

Abstract

Keywords

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