Internal catalysis for dynamic covalent chemistry applications and polymer science

Area of Science:

• Polymer Chemistry
• Materials Science
• Organic Chemistry

Background:

• Dynamic covalent chemistry (DCC) involves reversible covalent bonds with applications in materials science.
• Recent decades show increased interest in DCC for designing novel polymer materials.
• DCC in polymers can lead to unique properties like self-healing and covalent adaptable networks (CANs).

Purpose of the Study:

• To review the scope, advantages, and pitfalls of internal catalysis in DCC applications.
• To highlight internally catalyzed DCC platforms as a promising strategy for polymer materials.
• To explore the mimicry of enzymatic reactions through neighboring group participation (NGP) in DCC.

Main Methods:

• Reviewing existing literature on dynamic covalent chemistry and internal catalysis.
• Analyzing examples of DCC implementation in small molecules and polymer materials.
• Discussing the principles of neighboring group participation (NGP) in chemical exchange reactions.

Main Results:

• Internal catalysis, or NGP, provides a subtle yet significant influence on DCC reactions.
• This approach allows for triggerable reactivity and material adaptability without compromising robustness.
• Internally catalyzed DCC avoids harsh conditions detrimental to polymer integrity.

Conclusions:

• Internal catalysis is a highly attractive strategy for developing advanced DCC-based polymer materials.
• This approach offers a balance between reactivity, stability, and material integrity.
• Further exploration of NGP in DCC holds significant potential for future material innovations.