Hydrolysis-resistant heterogeneous photocatalysts for PET-RAFT polymerization in aqueous environments

Kirsten Bell, Brock Hunter, Marvin Alvarez, Sai Dileep Kumar Seera, Yiwen Guo, Yen Ting Lin, Seong H. Kim, Christian W. Pester

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Solid-supported organic photocatalysts for radical polymerization are promising materials towards more sustainable chemical syntheses and may also open the pathway towards novel (super)hydrophilic materials. This contribution reports on the development of a hydrolysis-resistant heterogeneous photocatalysis platform based on photocatalytic polymer brushes tethered to solid glass supports. The obtained materials circumvent limitations of silane hydrolysis in aqueous conditions and provide well-controlled light-mediated radical polymerization. Moreover, significantly improved longevity and recyclability can be accomplished by adding hydrophobic protective layers that mitigate silane hydrolysis by limiting water-diffusion to reactive sites. We interrogate both the influence of this hydrophobic protective layer and the influence of the hydrophilicity of the photoactive polymer brush on photocatalytic efficacy of the described platform.

Original languageEnglish (US)
Pages (from-to)16616-16625
Number of pages10
JournalJournal of Materials Chemistry A
Volume11
Issue number31
DOIs
StatePublished - Jul 21 2023

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Renewable Energy, Sustainability and the Environment
  • General Materials Science

Cite this