DataVXACS Applied Polymer MaterialsPaper
journal article·2024-03-22Open access

Diazirine-Functionalized Polyurethane Crosslinkers for Isocyanate-Free Curing of Polyol-Based Coatings

Felix J. de Zwart, Lukas A. Wolzak, Keimpe J van den Berg, Miranda J. Baran, Jeremy E. Wulff, Jitte Flapper, Bas de Bruin

ACS Applied Polymer Materials· Volume 6· Issue 6
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Source abstract

Abstract

Polyurethane coatings have strong material properties due to the hydrogen bonding inherent to the urethane groups. However, installing this urethane moiety usually requires curing through difficult-to-handle isocyanates. In this work, we show the development of a polyurethane-based crosslinker that can be used to formulate a one-component polyurethane coating with material properties similar to those of isocyanate-based polyurethane coatings. To achieve this, we used diazirine functionalities that generate carbenes upon heating, which react with alcohol functionalities in a polyol to generate a crosslinked network with a high storage modulus.
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Research context

OpenAlex topics: Carbon dioxide utilization in catalysis · Synthetic Organic Chemistry Methods · Synthesis and properties of polymers

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Affiliations

Homogeneous, Supramolecular and Bio-Inspired Catalysis Group, van ’t Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, 1098 XH Amsterdam, The Netherlands

Akzo Nobel Car Refinishes B.V., 2171 AJ Sassenheim, The Netherlands

XLYNX Materials, Inc., Victoria, British Columbia V8P 5C2, Canada

Department of Chemistry, University of Victoria, Victoria, British Columbia V8W 2Y2, Canada

Akzo Nobel Decorative Coatings B.V., 2171 AJ Sassenheim, The Netherlands

Funding

Australian Research Council · Nederlandse Organisatie voor Wetenschappelijk Onderzoek · Ministerie van Economische Zaken en Klimaat

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