3,4-Di-(2＇-hydroxyethoxy)-4＇-nitrostilbene (2) were prepared by the reaction of 2-iodoethanol with 3,4-dihydroxy-4＇-nitrostilbene (1). Diol 2 was condensed with 2,4-toluenediisocyanate and 3,3＇-dimethoxy-4,4＇-biphenylenediisocynate to yield polyurethanes 3 and 4 containing the NLO-chromophore 3,4-dioxy-4＇-nitrostilbene. Polymers 3 and 4 were soluble in common organic solvents such as acetone and DMSO. T-g value of the resulting polymers was in the range of 109-114 degrees C. Electrooptic coefficient (r(33)) of the poled polymer films were in the range of 20-25 pm/V at 633 nm. Polymers 3 and 4 showed a thermal stability up to 300 degrees C in TGA thermograms, which is acceptable for NLO device applications.