Abstract
Surface-initiated photoinduced electron transfer-reversible addition-fragmentation chain transfer (SI-PET-RAFT) polymerization has been preferentially used for preparing thin polymeric film coatings due to its simple execution under ambient conditions (e.g., in air) and visible light requirement. Herein, we demonstrate the preparation of polymer brushes by SI-PET-RAFT polymerization on a thin macroinitiator film electrodeposited on electrically conductive indium tin oxide and gold surfaces. An electrochemically active carbazole-containing chain transfer agent as macroinitiator was shown to be not only effective in mediating SI-PET-RAFT polymerization for various monomers but also capable of forming block copolymers. Additionally, the fabricated polymer brush films were able to encapsulate colloidal gold nanoparticles, thereby demonstrating potential use for biomedical and sensing applications.
| Original language | English |
|---|---|
| Pages (from-to) | 6449-6457 |
| Number of pages | 9 |
| Journal | ACS Applied Polymer Materials |
| Volume | 4 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 9 2022 |
Funding
The research work (or part of this work) used resources at the Center for Nanophase Materials Sciences, Oak Ridge National Laboratory which is a U.S. Department of Energy Office of Science User Facility. This material iswork (or part of this work) supported by the National Science Foundation Graduate Research Fellowship under Grant No. 1937968. Resources were also made available through the University of Tennesee, Institute for Advanced Materials and Manufacturing.
Keywords
- PET-RAFT polymerization
- biomedical
- block copolymers
- macroinitiator film
- polymer brush
- polymeric coating
- sensing
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