A novel acrylic monomer bearing pyrimidino-moiety

N-methacrylyl-N'-pyrimidinopipe-razine (MPMP) was synthesized by the reaction of N-pyrimidinopiperazine and methacrylyl chloride in the presence of triethylamine. Both absorption and fluorescence spectum for the monomer and its polymer were recorded. It was observed that the fluorescence intensity of monomeric MPMP was slightly lower than that of its polymer. The monomer did not dramatically appear its structural self-quenching effect as we have reported previously. The fluores-cence of the polymer

P(MPMP) culd be quenched by electron-deficient quenchers such as methacrylonitrile

acrylonitrile

fumaronitrile; methyl acrylate and methyl methacrylate. The Stern-Volmer constants of those quenchers for P(MPMP) were determined.