Volume 42, Issue 3 2000339
Communication

Synthesis of a Renewable, Waste-Derived Nonisocyanate Polyurethane from Fish Processing Discards and Cashew Nutshell-Derived Amines

Courtney M. Laprise

Courtney M. Laprise

Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X7 Canada

Search for more papers by this author
Kelly A. Hawboldt

Kelly A. Hawboldt

Department of Process Engineering, Memorial University of Newfoundland, St. John's, Newfoundland, A1C 5S7 Canada

Search for more papers by this author
Francesca M. Kerton

Corresponding Author

Francesca M. Kerton

Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X7 Canada

E-mail: [email protected], [email protected]

Search for more papers by this author
Christopher M. Kozak

Corresponding Author

Christopher M. Kozak

Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, A1B 3X7 Canada

E-mail: [email protected], [email protected]

Search for more papers by this author
First published: 09 August 2020
Citations: 11

Abstract

Waste-derived fish oil (FO) can be epoxidized and reacted with CO2 to produce a cyclic carbonate containing material. Upon reaction with a bioderived amine, this leads to the formation of nonisocyanate polyurethane materials. The FO used is extracted from the by-products produced at fish processing plants, including heads, bones, skin, and viscera. Three different methods are used for the epoxidation of the FO: (i) oxidation by 3-chloroperoxybenzoic acid, (ii) oxidation by hydrogen peroxide and acetic acid, catalyzed by sulfuric acid, and (iii) oxidation by hydrogen peroxide catalyzed by formic acid. Synthesized FO epoxides are reacted with CO2 to yield FO cyclic carbonates with high conversions. The products are characterized by 1H and 13C NMR spectroscopy, IR spectroscopy, thermogravimetric analysis, and viscometry. Using a biomass-derived amine, nonisocyanate polyurethane materials are synthesized. This process can lead to new opportunities in waste management, producing valuable materials from a resource that is otherwise underutilized.

Conflict of Interest

The authors declare no conflict of interest.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.