The influence of branching on the Kumada catalyst transfer condensative polymerization of 3-alkylthiophenes
| Autor: | Guy Koeckelberghs, Lize Verheyen, Birgitt Timmermans |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Kinetic chain length
Polymers and Plastics Chemistry Organic Chemistry Cationic polymerization Bioengineering Chain transfer 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Biochemistry 0104 chemical sciences Chain-growth polymerization Polymerization Polymer chemistry Living polymerization Reversible addition−fragmentation chain-transfer polymerization 0210 nano-technology Ionic polymerization |
| Zdroj: | Polymer Chemistry. 8:2327-2333 |
| ISSN: | 1759-9962 1759-9954 2327-2333 |
| DOI: | 10.1039/c7py00255f |
| Popis: | © The Royal Society of Chemistry. To study the influence of branching of the side chain on the Kumada catalyst transfer condensative polymerization (KCTCP) of 3-alkylthiophenes, first, a new, severely branched precursor monomer, 2-bromo-5-iodo-3-(2-octyldodecyl)thiophene, was designed. The controlled character of its polymerization was investigated and rate studies for both poly(3-hexylthiophene) (P3HT) and poly(3-(2-octyldodecyl)thiophene) (P3ODT) were performed. Second, the influence of non-covalent gelation on the controlled character of the polymerization was studied through the determination of the maximal degree of polymerization that could be obtained in a controlled manner. Third, nona-stage polymers were synthesized and the lifetime of the active chain ends for P3HT and P3ODT was studied. Last, the nature of the occurring termination reactions was established. Altogether, these results point out the difference in polymerization behavior between branched and linear alkyl substituents and, related to this, between gelated and non-gelated polymerization mixtures. crosscheck: This document is CrossCheck deposited related_data: Supplementary Information identifier: L. Verheyen (ORCID) identifier: B. Timmermans (ORCID) identifier: G. Koeckelberghs (ORCID) copyright_licence: The Royal Society of Chemistry has an exclusive publication licence for this journal history: Received 15 February 2017; Accepted 22 March 2017; Accepted Manuscript published 22 March 2017; Advance Article published 28 March 2017; Version of Record published 11 April 2017 ispartof: Polymer Chemistry vol:8 issue:15 pages:2327-2333 status: published |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|