Benzotriazole-containing fluorinated acrylic polymer coatings with high thermal stability, low surface energy, high visible-light transparency, and UV-blocking performance

Dong Cheul Han, Heesang Kim, Giseop Kwak

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Acryl chemistry provides the convenience of manufacturing various functional polymers because of a lot of commercially available monomers and a facile polymerization method. In this study, novel fluorinated acrylic polymers with a benzotriazole pendant were successfully synthesized via radical polymerization. These polymers exhibited considerably high thermal stabilities and low surface energies because of fluorinated alkyl groups along with excellent optical properties owing to the presence of fluorinated alkyl groups and the intense UV absorption of the benzotriazole moiety (i.e., relatively low refractive indices), illustrating perfect UV-blocking performances of up to approximately 380 nm. Moreover, polymer-coated PET films exhibited high visible-light transmittance due to the antireflection in the interface between the PET substrate and the polymer film. The present benzotriazole-containing fluorinated acrylic polymers are expected to be used as UV-blocking organic coating materials, especially for organic solar cell applications. Graphical abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)5641-5654
Number of pages14
JournalPolymer Bulletin
Volume80
Issue number5
DOIs
StatePublished - May 2023

Keywords

  • Benzotriazole
  • Fluorinated acrylic polymer
  • Thermal stability
  • Transparency
  • UV blocking

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