Chemiluminescence-Induced Free Radical-Promoted Cationic Polymerization


Zhu J., Zhu Y., Li Z., Yu Z., Guan X., Liu R., ...More

MACROMOLECULAR RAPID COMMUNICATIONS, vol.41, no.8, 2020 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 41 Issue: 8
  • Publication Date: 2020
  • Doi Number: 10.1002/marc.202000004
  • Title of Journal : MACROMOLECULAR RAPID COMMUNICATIONS

Abstract

Chemiluminescence (CL) has recently been featured as a new external light source for various photoinduced reactions with attractive features such as eliminating continuous energy supply and advanced light source setups. In the present study, the free-radical-promoted cationic polymerization of cyclohexene oxide, n-butyl vinyl ether, and N-vinyl carbazole under CL irradiation is described. The method is based on the visible-light-induced generation of electron donor radicals from bis-(4-methoxybenzoyl)diethyl germane (BAG), bis(2,4,6-trimethylbenzoyl) phenyl phosphinate, and camphorquinone by CL illumination followed by electron transfer to diphenyl iodonium hexafluorophosphate (Ph2I+PF6-) to form corresponding cations capable of initiating cationic polymerization. The applicability of the process to network formation is also demonstrated by using a bifunctional monomer, tri(ethylene glycol) divinyl ether.