RAFT thermoplastics from glycerol: a biopolymer for development of sustainable wood adhesives
Date
2020-08-19
Authors
Forrester, Michael
Becker, Andrew
Hohmann, Austin
Hernandez, Nacu
Lin, Fang-Yi
Bloome, Nicholas
Johnson, Grant
Dietrich, Hannah
Marcinko, Joe
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Royal Society of Chemistry
Abstract
The increasing demand for bioderived plastics and rubbers and the large supply of glycerol makes it an excellent starting chemical for the production of biopolymers. Little success in commercially viable glycerol polymers has yet to be realized. In particular, high molecular weight thermoplastics have been especially elusive due to the multifunctional nature of glycerol. This work details the production of glycerol–acrylic biopolymers. By esterifying glycerol with acrylic acid, and subsequent RAFT polymerization to suppress the gelation, we were able to achieve glycerol thermoplastics with high molecular weights (1 MDa). After studying the thermal/mechanical properties of the polymer, it was found that these glycerol polymers had a high degree of tack. When added to wood as an adhesive, it was found that performance was comparable or exceeded standard wood adhesives such as Poly (Methylene diphenyl diisocyanate) (PMDI) and formaldehyde based adhesives. This yields wood adhesives that have less toxicity, lower environmental impact, and higher renewability.
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This article is published as Forrester, Michael, Andrew Becker, Austin Hohmann, Nacu Hernandez, Fang-Yi Lin, Nicholas Bloome, Grant Johnson et al. "RAFT thermoplastics from glycerol: a biopolymer for development of sustainable wood adhesives." Green Chemistry 22, no. 18 (2020): 6148-6156.
DOI: 10.1039/D0GC01831G.
Copyright 2020 The Royal Society of Chemistry.
Posted with permission.