Issue 31, 2021, Issue in Progress
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RSC Advances

Green alternative cosolvents to N-methyl-2-pyrrolidone in water polyurethane dispersions†

Lorena Germán, ORCID logo *a   José María Cuevas,a   Rubén Cobos,a   Leyre Pérez-Alvarezb  and  José Luis Vilas-Vilelabc  

* Corresponding authors

a Gaiker Technology Centre, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, edificio 202, E-48170 Zamudio, Spain
E-mail: german@gaiker.es

b Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country UPV/EHU, Barrio Sarriena s/n 48940 Leioa, Spain
E-mail: joseluis.vilas@ehu.eus

c BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain

Abstract

N-Methyl-2-pyrrolidone is a toxic dipolar aprotic solvent widely used in the synthesis of polyurethane dispersions (PUD). Since legislation strongly restricts this substance, green alternatives are essential. Dihydrolevoglucosenone and gamma valerolactone demonstrate comparable performance to that of NMP as cosolvent in the synthesis and the film forming process of PUD.

Graphical abstract: Green alternative cosolvents to N-methyl-2-pyrrolidone in water polyurethane dispersions

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Article information

DOI
https://doi.org/10.1039/D1RA03157K
Article type
Paper
Submitted
22 Apr 2021
Accepted
19 May 2021
First published
26 May 2021
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2021,11, 19070-19075

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Green alternative cosolvents to N-methyl-2-pyrrolidone in water polyurethane dispersions

L. Germán, J. M. Cuevas, R. Cobos, L. Pérez-Alvarez and J. L. Vilas-Vilela, RSC Adv., 2021, 11, 19070 DOI: 10.1039/D1RA03157K

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