Abstract
A new and facile method for the preparation of mono- and hexa-functional Ni-bipyridyl-based initiators that mediate Kumada polycondensation of 2-bromo-5-chloromagnesio-3-hexylthiophene into head-to-tail regioregular poly(3-hexylthiophene), P3HT, has been developed. An important advantage of the catalytic system presented herein is the ease of the preparation of a number of Ar-Nibipy-Br initiators from readily available aryl halides. As an example, the "core-first" synthesis of 6-arm star-like P3HT having a hexaphenylbenzene core is demonstrated.
| Original language | English |
|---|---|
| Pages (from-to) | 17-25 |
| Number of pages | 9 |
| Journal | Macromolecular Symposia |
| Volume | 291-292 |
| Issue number | 1 |
| DOIs | |
| State | Published - May 2010 |
| Externally published | Yes |
Keywords
- Atomic force microscopy
- Chain-growth
- Conjugated polymers
- Polycondensation
- Scanning tunneling microscopy
- Star polymers