Journal
CHEMSUSCHEM
Volume 7, Issue 8, Pages 2289-2294Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402091
Keywords
bio-based; carboxylic acid; coating; epoxidized sucrose soyate; thermosetting
Funding
- National Science Foundation EPSCoR [EPS-0814442]
- State of North Dakota
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A new 100% bio-based thermosetting coating system was developed from epoxidized sucrose soyate crosslinked with blocked bio-based dicarboxylic acids. A solvent-free, green method was used to block the carboxylic acid groups and render the acids miscible with the epoxy resin. The thermal reversibility of this blocking allowed for the formulation of epoxy-acid thermoset coatings that are 100% bio-based. This was possible due to the volatility of the vinyl ethers under curing conditions. These systems have good adhesion to metal substrates and perform well under chemical and physical stress. Additionally, the hardness of the coating system is dependent on the chain length of the diacid used, making it tunable.
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