SYNTHESIS AND PROPERTIES OF POLYESTER DENDRIMERS BEARING CARBAZOLE GROUPS IN THEIR PERIPHERY

Polyester dendrimers bearing carbazole units at their peripheries were synthesized by attacking 3,5-bis[4-(9-carbazolyl)butoxy]benzoic acid to the peripherical phenoxy groups. The phenoxy-terminated polyester d endrimers were synthesized by hydrogenation of the corresponding benzy loxy-terminated polyester dendrimers. The structure of the synthesized compounds was confirmed with IR, (NMR)-N-1, MALDI-TOF MS and GPC. The reaction conditions for attaching 3,5-bis[4-(9-carbazolyl)butoxy]benz oic acid to the peripherical phenoxy groups of polyester dendrimers we re studied. Fluorescence spectra studies showed that there exist stron g intramolecular interactions in the carbazole dendrimer molecules.