A range of alternating block co-polymers have been synthesized consisting of p-phenylene vinylene (PPV) based oligomers interspersed with flexible aliphatic blocks using a modified Wittig polymerization. The resulting polymers were characterized by NMR, UV-Vis, GPC, and DSC. Films of the polymers blended with single-walled carbon nano-tubes (SWCNT) were prepared, p-doped using I2 and their electrical conductivities determined using a four-point probe measurement. Seebeck coefficients (S) were determined by measuring the resultant potential as a temperature gradient was applied across the macroscopic sample. The dimensionless thermoelectric figure of merit ZT was calculated from the expression The ZT’s of the composite films were found to be of the order of 10e-3, indicating that polymer composites were relatively good thermoelectric materials.
Ključne reči :
Tematska oblast:
SIMPOZIJUM A: Nauka materije, kondenzovane materije
Datum:
06.06.2012.
Br. otvaranja:
407
Contemporary Materials - 2012 - Savremeni materijali
