SYNTHESIS AND OPTICAL-PROPERTIES OF A NOVEL SOLUBLE POLYCARBAZOLYLDIACETYLENE

A novel soluble polydiacetylene with 3,6-dialkyl-substituted carbazoly l side groups (polyDCHD-S) has been prepared. Its electronic and vibra tional properties have been studied in the crystalline state. The resu lts are compared with those of polyDCHD taken as reference. PolyDCHD-S shows a very high conjugation length like polyDCHD but an increased i nterchain separation. High non-linear optical response is then expecte d; that together with the processability of the polymer - suggests att ractive applications in photonic devices based on thin film technology .