Reversible hetero-Diels-Alder amine hardener as drop-in replacement for healable epoxy coatings

Sinu C. Rajappan; Brad J. Davis; Isaiah T. Dishner; Travis L. Thornell; John J. Peyrefitte; Yoan C. Simon

doi:10.1039/d1py00917f

Reversible hetero-Diels-Alder amine hardener as drop-in replacement for healable epoxy coatings

Sinu C. Rajappan, Brad J. Davis, Isaiah T. Dishner, Travis L. Thornell, John J. Peyrefitte, Yoan C. Simon

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We describe a new amine-hardener that enables intrinsic thermally activated healing in epoxy-amine coatings. A hetero-Diels Alder (HDA) adduct bridges biosourced fatty acids and serves as the thermoreversible linker. We validated the thermal reversion of the adduct in solution and the HDA-containing diamine served as a drop-in replacement for commercial hardeners.

Original language	English
Pages (from-to)	741-747
Number of pages	7
Journal	Polymer Chemistry
Volume	13
Issue number	6
DOIs	https://doi.org/10.1039/d1py00917f
State	Published - Feb 14 2022
Externally published	Yes

Funding

The authors would like to acknowledge Michael Blanton, Richard Ferguson, and Dr James Rawlins for sharing their expertise in coatings and assistance developing the initial films used in this study. B. J. D. and I. T. D. would like to acknowledge the National Science Foundation National Research Traineeship (NSF NRT) program award DGE-149999. The authors acknowledge the US Army Engineer Research and Development Center (Contract No. W912HZ-18-C-0022) for partial support of this research.

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10.1039/d1py00917f

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title = "Reversible hetero-Diels-Alder amine hardener as drop-in replacement for healable epoxy coatings",

abstract = "We describe a new amine-hardener that enables intrinsic thermally activated healing in epoxy-amine coatings. A hetero-Diels Alder (HDA) adduct bridges biosourced fatty acids and serves as the thermoreversible linker. We validated the thermal reversion of the adduct in solution and the HDA-containing diamine served as a drop-in replacement for commercial hardeners.",

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AU - Rajappan, Sinu C.

AU - Davis, Brad J.

AU - Dishner, Isaiah T.

AU - Thornell, Travis L.

AU - Peyrefitte, John J.

AU - Simon, Yoan C.

PY - 2022/2/14

Y1 - 2022/2/14

N2 - We describe a new amine-hardener that enables intrinsic thermally activated healing in epoxy-amine coatings. A hetero-Diels Alder (HDA) adduct bridges biosourced fatty acids and serves as the thermoreversible linker. We validated the thermal reversion of the adduct in solution and the HDA-containing diamine served as a drop-in replacement for commercial hardeners.

AB - We describe a new amine-hardener that enables intrinsic thermally activated healing in epoxy-amine coatings. A hetero-Diels Alder (HDA) adduct bridges biosourced fatty acids and serves as the thermoreversible linker. We validated the thermal reversion of the adduct in solution and the HDA-containing diamine served as a drop-in replacement for commercial hardeners.

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Reversible hetero-Diels-Alder amine hardener as drop-in replacement for healable epoxy coatings

Abstract

Funding

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