journal article·2022-09-09Open access

SI-PET-RAFT Polymerization via Electrodeposited Macroinitiator Thin Films: Toward Biomedical and Sensing Applications

Li-Han Rong, Xiang Cheng, Jin Ge, Olivia K. Krebs, Jeffrey R. Capadona, Eugene B. Caldona, Rigoberto C. Advincula

ACS Applied Polymer Materials· Volume 4· Issue 9

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. In this study, 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.
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Research context

OpenAlex topics: Polymer Surface Interaction Studies · Conducting polymers and applications · Analytical Chemistry and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States

Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States

Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States

Advanced Platform Technology Center, Rehabilitation Research and Development, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, Ohio 44106, United States

Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58102, United States

Department of Chemical and Biomolecular Engineering and Institute for Advanced Materials and Manufacturing, University of Tennessee, Knoxville, Tennessee 37996, United States

Funding

National Science Foundation Graduate Research Fellowship

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