Three donor-acceptor conjugated polymers P1-P3 derived from 3,5-dicyano-2,4,6-tristyrylpyridine (PY) have been synthesized through the Knoevenagel reaction. The polymers are characterized by 1H NMR, FTIR, UV-vis and elemental analysis. P1 and P2 have high molecular weight up to 2.3 ×105 and 29.5 ×105 and show excellent solubility in common solvents such as THF, CH2Cl2, CHCl3 and DMF. They all have relatively good thermal stability with the 5% weight loss temperature at 402, 264 and 364 °C in argon, respectively. The fluorescence spectrum of P1 displayed the maximum at 588 nm in...
