Fluorene-Carbazole-Based Porous Polymers by Photoinduced Electron Transfer Reactions
MACROMOLECULES, vol.53, no.5, pp.1645-1651, 2020 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 53 Issue: 5
- Publication Date: 2020
- Doi Number: 10.1021/acs.macromol.9b02709
- Journal Name: MACROMOLECULES
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Biotechnology Research Abstracts, Chimica, Compendex
- Page Numbers: pp.1645-1651
- Çanakkale Onsekiz Mart University Affiliated: Yes
Abstract
A new photoinitiating system for the metal-free preparation of conjugated microporous polymers (CMPs) is reported. In this approach, irradiation of solutions containing an electroactive monomer, possessing both carbazole and fluorene units, 9,9'-(9,9-dihexyl-9H-fluorene-2,7-diyl)bis-9H-carbazole (CFD), and the iodonium salt (Ph2I+PF6-) as the oxidizing agent resulted in the formation of CMPs. Photoinduced step-growth polymerization proceeded through the successive electron transfer between the excited CFD and iodonium salt, proton release, and coupling reactions. The polymers formed were characterized by FT-IR and H-1 NMR analyses. The electrochemical and optical properties of CMPs before and after the dedoping process were evaluated by cyclic voltammetry, differential pulse voltammetry, and UV-vis absorption and photoluminescence techniques. The porous structure of the obtained polymers was confirmed by atomic force microscopy and scanning electron microscopy studies.