SI-PET-RAFT: Surface-Initiated Photoinduced Electron
Transfer-Reversible Addition–Fragmentation Chain Transfer Polymerization
Mingxiao Li
Michele Fromel
Dhanesh Ranaweera
Sergio Rocha
Cyrille Boyer
Christian W. Pester
10.1021/acsmacrolett.9b00089.s001
https://acs.figshare.com/articles/journal_contribution/SI-PET-RAFT_Surface-Initiated_Photoinduced_Electron_Transfer-Reversible_Addition_Fragmentation_Chain_Transfer_Polymerization/7877492
In
this communication, surface-initiated photoinduced electron
transfer-reversible addition–fragmentation chain transfer polymerization
(SI-PET-RAFT) is introduced. SI-PET-RAFT affords functionalization
of surfaces with spatiotemporal control and provides oxygen tolerance
under ambient conditions. All hallmarks of controlled radical polymerization
(CRP) are met, affording well-defined polymerization kinetics, and
chain end retention to allow subsequent extension of active chain
ends to form block copolymers. The modularity and versatility of SI-PET-RAFT
is highlighted through significant flexibility with respect to the
choice of monomer, light source and wavelength, and photoredox catalyst.
The ability to obtain complex patterns in the presence of air is a
significant contribution to help pave the way for CRP-based surface
functionalization into commercial application.
2019-03-21 00:00:00
form block copolymers
SI-PET-RAFT
chain ends
CRP-based surface functionalization
spatiotemporal control
oxygen tolerance
chain end retention
photoredox catalyst
light source
polymerization kinetics
ambient conditions