Using bis(pinacolato)diboron to improve the quality of regioregular conjugated co-polymersBrouwer, F., Alma, J., Valkenier, H., Voortman, T. P., Hillebrand, J., Chiechi, R. C. & Hummelen, J. C., 2011, In : Journal of Materials Chemistry. 21, 5, p. 1582-1592 11 p.
Research output: Contribution to journal › Article › Academic › peer-review
We demonstrate the use of bis(pinacolato)diboron to directly polymerize symmetric, bisbromo, thiophene-based monomers via a Suzuki homo-polymerization to form co-polymers in less steps than the corresponding co-polymerization. We compare this method to the commonly used Stille co-polymerization by preparing four thiophene-based co-polymers using both methods. We use MALDI-TOF mass spectrometry to show that this new method produces high-quality, uniform polymers with narrow distributions of end-groups. By varying the electronegativity of the monomers, we demonstrate rudimentary control over these end-groups, forming either bis-H-, mono-H-mono-Br-, or bis-Br-terminated polymers in order of increasing electronegativity.
|Number of pages||11|
|Journal||Journal of Materials Chemistry|
|Publication status||Published - 2011|
- CATALYST-TRANSFER POLYCONDENSATION, CHAIN-GROWTH POLYMERIZATION, CROSS-COUPLING REACTION, SUZUKI POLYCONDENSATION, MOLECULAR ELECTRONICS, MASS-SPECTROMETRY, MALDI-MS, POLYMERS, POLYTHIOPHENE, FUNCTIONALIZATION