Synthesis and Characterization of Highly Regioregular Poly (3 - Hexylthiophene)
Regioregular poly (3-hexylthiophene) was synthesized by exchanging with Grignard agent followed by coupling with catalysis of Ni (dppp)Cl2. A nearly 100% HT-HT structure was verified from 1H-NMR and 13C-NMR data analysis. This highly regioregular structure gives P3HT outstanding stability and certain redshift of absorption spectra was found in contrast to materials with lower regioregularity.
Shiquan Liu and Min Zuo
C.Y. Zhou et al., "Synthesis and Characterization of Highly Regioregular Poly (3 - Hexylthiophene)", Advanced Materials Research, Vols. 306-307, pp. 1649-1652, 2011