N-[n-(4-cyanobiphenyl-4＇-yloxy)alkyl] -7-oxanorbornene-5,6-exo-dicarboximide (CBON2-CBON8) with increasing number of methylene groups in the alkyl part (n = 2-8) were synthesized by Mitsunobu condensation between the appropriate alcohols (CBA(2)-CBA(8)) and 7-oxanorbornene-5,6-exo-dicarboximide (ON). The conditions for the ring opening metathesis polymerization of CBONn giving acceptable molecular weights and molecular distributions were established. Characterization of the resulting polymers (P-2-P-8) by H-1- and C-13-NNIR has shown a high trans content. Differential scanning calorimetry and optical microscopy analysis have shown that the alcohols CBA(n) are thermotropic with some variations between the first and second heating-cooling cycles, the monomers CBONn melt with no evidence of any mesomorphic state, the polymers P-n show only the glass transition, and the glass transition temperature (T-g) decreases with increases in the spacer length.