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Ferulic Acid-Based Polymers with Glycol Functionality as a Versatile Platform for Topical Applications.

Michelle A Ouimet1, Jonathan J Faig1, Weiling Yu1

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Summary

New ferulic acid polymers with ethylene glycol linkers offer faster release for skincare. These advanced polymers provide controlled ferulic acid delivery, enhancing antioxidant activity for topical applications.

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Cosmetic Science

Background:

  • Ferulic acid polymers with aliphatic linkages exhibit slow release rates (approx. 11 months).
  • Current formulations require more rapid ferulic acid release for effective skincare applications.

Purpose of the Study:

  • To synthesize ferulic acid-based polymers with ethylene glycol linkers to accelerate ferulic acid release.
  • To investigate the influence of polymer structure and properties on release rates and antioxidant activity for topical applications.

Main Methods:

  • Solution polymerization was used to create ferulic acid-based polymers with varying ethylene glycol linker lengths.
  • Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopies were employed for chemical characterization.
  • Molecular weights, thermal properties (glass transition temperature), and contact angles were analyzed.

Main Results:

  • Polymer glass transition temperature decreased with increasing linker length.
  • Increased oxygen content in polymers led to decreased contact angles.
  • Ferulic acid release rates and antioxidant activity were modulated by polymer chemical structure and physical properties.
  • All polymers demonstrated ferulic acid release without bioactive decomposition.

Conclusions:

  • Ferulic acid-based polymers with ethylene glycol linkers enable tunable and accelerated release rates.
  • These polymers are suitable for topical applications, offering controlled ferulic acid delivery for skincare.
  • The study highlights the correlation between polymer characteristics and functional performance in cosmetic formulations.