On‐Demand Deconstructable Thermosets Through Cleavable Comonomer and Thermolatent Base Synergy
Abstract
Thermosets provide superior chemical and mechanical properties critical for high‐performance applications, but their permanent crosslinked networks severely limit recyclability and end‐of‐life (EOL) management. Traditional approaches relying on cleavable comonomers enable degradation only through slow diffusion of acidic or basic solutions, hindering practical implementation. Here, on‐demand deconstructable thermosets are developed by incorporating stimuli‐responsive thermolatent bases alongside cleavable comonomers prior to polymerization. These latent species remain inert during thermal or photoinitiated curing, including vat photopolymerization 3D printing, preserving classical thermoset performance. Upon near‐infrared photothermal or thermal activation (>100°C), rapid network deconstruction yields soluble branched oligomers, enabling efficient chemical recycling without aggressive solvents during service life. This strategy is demonstrated using thermolatent 1,5,7‐triazabicyclo[4.4.0]dec‐5‐ene derivatives with radical copolymerization of dibenzo[ c , e ]oxepine‐5‐thione with styrene/acrylic monomers, as well as ring‐opening metathesis polymerization of dicyclopentadiene with silyl ether‐containing cyclic olefins. The approach offers programmable degradation for sustainable high‐performance thermosets.
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BibTeX
@article{kouider2026ondemand,
title = {{On‐Demand Deconstructable Thermosets Through Cleavable Comonomer and Thermolatent Base Synergy}},
author = {Sophia Kouider and Loic Buchon and Luna Choulot and Paul Greuet and Julie Bratasanu and Patrick Désirée and Jessica Mauriello and Elsa Maarek and Jean‐louis Clément and Laurence Charles and Emmanuelle Gastaldi and Damien Montarnal and Olivier Soppera and Didier Gigmes and Catherine Lefay and Yohann Guillaneuf},
journal = {Angewandte Chemie International Edition},
year = {2026},
month = aug,
doi = {10.1002/anie.6855232},
url = {https://hal.science/hal-05828642v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - On‐Demand Deconstructable Thermosets Through Cleavable Comonomer and Thermolatent Base Synergy
AU - Sophia Kouider
AU - Loic Buchon
AU - Luna Choulot
AU - Paul Greuet
AU - Julie Bratasanu
AU - Patrick Désirée
AU - Jessica Mauriello
AU - Elsa Maarek
AU - Jean‐louis Clément
AU - Laurence Charles
AU - Emmanuelle Gastaldi
AU - Damien Montarnal
AU - Olivier Soppera
AU - Didier Gigmes
AU - Catherine Lefay
AU - Yohann Guillaneuf
PY - 2026
DA - 2026/08/06
JO - Angewandte Chemie International Edition
DO - 10.1002/anie.6855232
UR - https://hal.science/hal-05828642v1
AB - Thermosets provide superior chemical and mechanical properties critical for high‐performance applications, but their permanent crosslinked networks severely limit recyclability and end‐of‐life (EOL) management. Traditional approaches relying on cleavable comonomers enable degradation only through slow diffusion of acidic or basic solutions, hindering practical implementation. Here, on‐demand deconstructable thermosets are developed by incorporating stimuli‐responsive thermolatent bases alongside cleavable comonomers prior to polymerization. These latent species remain inert during thermal or photoinitiated curing, including vat photopolymerization 3D printing, preserving classical thermoset performance. Upon near‐infrared photothermal or thermal activation (>100°C), rapid network deconstruction yields soluble branched oligomers, enabling efficient chemical recycling without aggressive solvents during service life. This strategy is demonstrated using thermolatent 1,5,7‐triazabicyclo[4.4.0]dec‐5‐ene derivatives with radical copolymerization of dibenzo[ c , e ]oxepine‐5‐thione with styrene/acrylic monomers, as well as ring‐opening metathesis polymerization of dicyclopentadiene with silyl ether‐containing cyclic olefins. The approach offers programmable degradation for sustainable high‐performance thermosets.
SN - 1433-7851
SN - 1521-3773
ER -