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Heterogeneous Catalysis

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Updated: Jun 1, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
09:34

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

Dynamicity-Tunable Covalent Adaptable Networks Mediated by Catalysts.

Guangwen Men1, Xiaokong Liu1

  • 1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China.

Macromolecular Rapid Communications
|May 31, 2026
PubMed
Summary
This summary is machine-generated.

Covalent adaptable networks (CANs) offer sustainability but struggle with a dynamicity-stability trade-off. New catalytic strategies like "quenching-activating" show promise for on-demand transitions, resolving this challenge.

Keywords:
catalystscovalent adaptable networksdynamicityreprocessabilitythermal stabilitythermosets

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Area of Science:

  • Materials Science
  • Polymer Chemistry

Background:

  • Covalent adaptable networks (CANs) utilize dynamic covalent bonds (DCBs) for reprocessability, presenting a sustainable alternative to thermosets.
  • A key challenge is the trade-off between network dynamicity, essential for reprocessing, and thermal/mechanical stability.

Purpose of the Study:

  • To explore strategies for tuning the dynamicity of CANs to overcome the stability limitations.
  • To investigate catalytic approaches for achieving controlled and reversible transitions in CANs.

Main Methods:

  • Incorporation of switchable catalysts to reversibly control CAN dynamicity via stimuli-responsive regulation.
  • Utilizing latent catalysts for stimuli-responsive, one-way switching of dynamicity from thermosets to CANs.
  • Exploiting the "quenching-activating" strategy for reversible "on-off" control of dynamic exchange reactions.

Main Results:

  • Switchable catalysts allow reversible tuning of CAN dynamicity.
  • Latent catalysts enable a one-way transformation from thermosets to CANs.
  • The "quenching-activating" strategy provides reversible switching between CANs and thermosets, addressing the trade-off.

Conclusions:

  • Advanced catalytic strategies, particularly "quenching-activating" methods, are crucial for developing dynamicity-tunable CANs.
  • These strategies enable rapid, on-demand transitions between adaptable networks and stable thermosets.
  • Future research should focus on simple "quenching-activating" approaches to resolve the dynamicity-stability trade-off in CANs.