TY - JOUR
T1 - Heat- and Light-Responsive Materials Through Pairing Dynamic Thiol–Michael and Coumarin Chemistry
AU - Chakma, Progyateg
AU - Wanasinghe, Shiwanka V.
AU - Morley, Colleen N.
AU - Francesconi, Sebastian C.
AU - Saito, Kei
AU - Sparks, Jessica L.
AU - Konkolewicz, Dominik
N1 - Funding Information:
The authors would like to acknowledge Nethmi De Alwis Watuthanthrige for assistance with plotting figures. Acknowledgment is also given to the Donors of the American Chemical Society under Petroleum Research Fund (57243‐DNI7) for partial support of this work. This work was partially supported by the National Science Foundation (under Grant No. DMR‐1749730). P.C. would like to thank the Miami University Dissertation Scholar Program. D.K. acknowledges support from the Robert H. Blayney and Nancy J. Blayney Professorship.
Publisher Copyright:
© 2021 Wiley-VCH GmbH
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/9
Y1 - 2021/9
N2 - Covalent adaptable networks (CANs) based on the thiol–Michael (TM) linkages can be thermal and pH responsive. Here, a new vinyl-sulfone-based thiol–Michael crosslinker is synthesized and incorporated into acrylate-based CANs to achieve stable materials with dynamic properties. Because of the reversible TM linkages, excellent temperature-responsive re-healing and malleability properties are achieved. In addition, for the first time, a photoresponsive coumarin moiety is incorporated with TM-based CANs to introduce light-mediated reconfigureability and postpolymerization crosslinking. Overall, these materials can be on demand dynamic in response to heat and light but can retain mechanical stability at ambient condition.
AB - Covalent adaptable networks (CANs) based on the thiol–Michael (TM) linkages can be thermal and pH responsive. Here, a new vinyl-sulfone-based thiol–Michael crosslinker is synthesized and incorporated into acrylate-based CANs to achieve stable materials with dynamic properties. Because of the reversible TM linkages, excellent temperature-responsive re-healing and malleability properties are achieved. In addition, for the first time, a photoresponsive coumarin moiety is incorporated with TM-based CANs to introduce light-mediated reconfigureability and postpolymerization crosslinking. Overall, these materials can be on demand dynamic in response to heat and light but can retain mechanical stability at ambient condition.
KW - coumarin
KW - covalent adaptable networks
KW - dynamic bonding
KW - photochemistry
KW - responsive materials
KW - self-healing materials
KW - thiol–Michael bonding
UR - http://www.scopus.com/inward/record.url?scp=85105205101&partnerID=8YFLogxK
U2 - 10.1002/marc.202100070
DO - 10.1002/marc.202100070
M3 - Article
AN - SCOPUS:85105205101
SN - 1022-1336
VL - 42
JO - Macromolecular Rapid Communications
JF - Macromolecular Rapid Communications
IS - 18
M1 - 2100070
ER -