Son, SW Jung, SH Cho, HN 2024-01-21T09:04:50Z 2024-01-21T09:04:50Z 2022-01-10 2003-04-04 0379-6779 https://pubs.kist.re.kr/handle/201004/138649 Novel fluorene-based polyimides with a confined chromophore were synthesized by polycondensation of the fuorene-based dianhydride and the corresponding diamine, followed by partial esterification and imidization. The two precursor polymers, poly(amic acid) and poly(amic ester), were shown to be soluble, stable and highly luminescent, and also easily cast to give nice thin-films. The resulting polyimide obtained by thermal or chemical imidization of poly(amic acid) showed a very weak photoluminescence intensity whereas the poly(amic ester-co-imide) from poly(amic ester) had still strong one. English ELSEVIER SCIENCE SA POLYMERS Novel fluorene-based polyimides with a confined chromophore Article 10.1016/S0379-6779(02)00936-0 1 SYNTHETIC METALS, v.137, no.1-3, pp.1065 - 1066 SYNTHETIC METALS 137 1-3 1065 1066 scie scopus 000182533900097 2-s2.0-0037419070 Materials Science, Multidisciplinary Physics, Condensed Matter Polymer Science Materials Science Physics Polymer Science Article; Proceedings Paper POLYMERS fluorene chromophore polyimide poly(amic ester-co-imide) photoluminescence blue emission