New norbornene monomer, viz., 5-[(bicyclo[2.2.1]hept-5-en-2-ylmethoxy)methyl]-8-[(dimesitylboryl)oxy]quinoline (1), was synthesized. The copolymers based on monomer 1 and carbazole-containing norbornene derivatives were synthesized by ring-opening metathesis polymerization. The photoluminescent (PL) and electroluminescent (EL) properties of the synthesized polymeric products were studied. The copolymers revealed the green EL with a maximum luminance of 146 cd m^–2. The dependences between the PL and EL efficiencies of the polymers and their structures were determined.