Photophysical processes of a copolymer containing naphthalene and carbazole rings

The photophysical processes of copolymer formed by copolymerization of beta -naphthyl-methacrylate (NMA) with vinylcarbazole (VCZ) were studied. The re sults show that when the solution of copolymer (NMA-VCZ) in THF is located in a low concentration range (about 10(-8) mol/l), the fluorescence emissio n is in good agreement with that of NMA monomer and the excimer is formed w ith gradual increase in concentration of copolymer (NMA-VCZ). The fluoresce nce of copolymer (NMA-VCZ) can be efficiently quenched both by electron don ors and accepters where the quenching effects follow the Stern-Volmer equat ion. The dimolecular exciplex between copolymer (NMA-VCZ) and N,N-dimethyla niline (DMA) is formed and the triple exciplex is also observed in the same system. (C) 2000 Elsevier Science B.V. All rights reserved.