A biomedical library of serinol-derived polyesters

Area of Science:

• Polymer Chemistry
• Biomaterials Science
• Organic Synthesis

Background:

• Aliphatic polyesters are crucial in biomedical applications, with poly(glycolic acid) (PGA) being a key example.
• Developing new polyesters with extended properties requires novel monomer design and polymerization strategies.
• Glycerol-derived monomers presented polymerization challenges, necessitating alternative precursors.

Purpose of the Study:

• To synthesize and characterize novel polyesters using serinol as a precursor.
• To evaluate these polyesters as potential surrogate materials for poly(glycolic acid) (PGA).
• To establish structure-property relationships in these new polymers by varying mainchain and pendent groups.

Main Methods:

• Synthesis of N-substituted serinol-diol monomers, which were solid and easily prepared.
• Parallel polymerization of four N-substituted serinol-diol monomers with four commercial diacids, yielding 16 polyesters.
• Characterization of polyester properties, including glass transition temperature and contact angle measurements.

Main Results:

• N-substituted serinol monomers were successfully synthesized and polymerized reproducibly, unlike glycerol-derived monomers.
• A library of 16 novel polyesters was created, demonstrating the versatility of the serinol-based approach.
• Structure-property correlations were established by analyzing thermal and surface properties (glass transition, contact angle).

Conclusions:

• N-substituted serinol is a viable and advantageous precursor for synthesizing aliphatic polyesters.
• The synthesized polyesters show promise as tunable biomaterials, potentially expanding the scope of PGA alternatives.
• This study provides a foundation for designing new polyesters with tailored properties for specific biomedical applications.