Two n-type conjugated polymers of pyrazine and quinoxaline containing poly(p-phenylene vinylene) (P-1) (P-2) have been synthesized through Wittig route. Formation of the polymers were confirmed by spectral (UV-Vis, PL, FT-IR and NMR), elemental and GPC analysis. These polymers were soluble in common organic solvents such as THF, $CH_2Cl_2$, $CHCl_3$ and $CH_3CN$. The resulting polymers have good thermal stability upto 308 and $361^{circ}C$ with the 5 % weight loss. The absorption spectrum of the polymers displayed the maximum at 398 and 414 nm, corresponding to the ${pi}-{pi}^*$ electronic transition of the conjugated polymer backbones. The optical band gap of these polymers found to have in the range of 2.5-2.53 eV. The photoluminescence spectrum of the polymers was observed at 487 and 505 nm in $CHCl_3$ solution. AFM images depicted that the micrometer sized globular and triangular shaped particles can be seen from the polymer surfaces.