Jung, SH Lee, TW Kim, YC Suh, DH Cho, HN 2024-01-21T09:35:27Z 2024-01-21T09:35:27Z 2021-09-01 2003-01 0925-3467 https://pubs.kist.re.kr/handle/201004/138940 Novel para or meta-linked fluorene-based poly(azomethines) were synthesized by the reaction of the corresponding dialdehydes and diamines in the presence of anhydrous HMPA, DMSO, and calcium chloride as a dehydrating agent. The resulting polymers were highly soluble in common organic solvents such as THF, chloroform, etc. The molecular weights (M-w) and the polydispersities of the polymers were in the range of 1.0-2.2 x 10(4) and 2.5-2.6, respectively. Their glass transition temperatures were in the range of 137-153 degreesC. We characterized the optical absorption, photoluminescence (PL), and electroluminescence (EL) of the materials. The poly(azomethines) did exhibit PL and EL only after they were protonated with 50 mol% sulfonated polystyrene. The light-emitting devices based on the protonated poly(azomethines) showed white EL. (C) 2002 Elsevier Science B.V. All rights reserved. English ELSEVIER SCIENCE BV POLYAZOMETHINES Synthesis and characterization of fluorene-based poly(azomethines) Article 10.1016/S0925-3467(02)00131-3 1 OPTICAL MATERIALS, v.21, no.1-3, pp.169 - 173 OPTICAL MATERIALS 21 1-3 169 173 scie scopus 000180023100029 2-s2.0-0037210807 Materials Science, Multidisciplinary Optics Materials Science Optics Article; Proceedings Paper POLYAZOMETHINES electroluminescence fluorene poly(azomethines)