Degradable Water-Swellable Elastomers from Biobased Deep Eutectic Monomers

Area of Science:

• Materials Science
• Polymer Chemistry
• Sustainable Chemistry

Background:

• Deep eutectic monomers (DEMs) offer a novel approach to creating functional polymers from eutectic mixtures.
• Existing polymer synthesis methods often involve harsh conditions and non-renewable resources.

Purpose of the Study:

• To synthesize a new family of degradable cationic polyester elastomers using DEMs.
• To explore the structure-property relationships of these elastomers by varying monomer architecture.
• To evaluate the potential of these materials in biomedical and antimicrobial applications.

Main Methods:

• Synthesis of DEMs from choline chloride-based ionic diols and bio-sourced diacids (itaconic, succinic acids).
• Solvent-free polycondensation of DEMs under mild conditions.
• Systematic variation of ionic diol chain length and diacid ratios to control network properties.

Main Results:

• Successful formation of water-swellable, biodegradable cationic polyester elastomers.
• Tunable cross-linking density, chain mobility, swelling behavior, and ionic conductivity.
• Demonstrated intrinsic antimicrobial activity, enhanced by molecular design.

Conclusions:

• Eutectic monomer engineering provides a sustainable route to advanced functional elastomers.
• These materials hold promise for transient, resorbable, and biocompatible applications like tissue scaffolding and wound care.
• The developed elastomers offer tunable antimicrobial properties and ionic conductivity.