Three carbazole containing methacrylates

i.e. 2-(N-carbazolyl)ethyl methacrylate(CzEMA)

6-(N-carbazolyl)hexyl methacrylate(CzHMA) and 11-(N-carbazolyl) undecyl methacrylate(CzUMA)

and their model compounds 2-(N-carbazolyl)ethyl isobutyrate

6-(N-carbazolyl)hexyl isobutyrate and 11-(N-carbazolyl) undecyl isobutyrate were synthesized.These monomers can be easily homo and copolymerized with MMA by the initiation of AIBN.UV absorption spectra show that there is no or negligible interaction between methacrylate and the carbazolyl chromophore in the ground state.Fluorescence spectra of these monomers

their model compounds and copolymers show that CzEMA exhibits fluorescence structural self-quenching effect(SSQE)

but CzHMA and CzUMA does not.This result indicates that SSQE expressed by CzEMA is caused by intramolecular charge transfer interaction between the excited carbazolyl chromophore and the electron-accepting carbon-carbon double bond of acrylic group.