화학공학소재연구정보센터
Macromolecules, Vol.41, No.20, 7490-7496, 2008
Modular Approach to Chromophore Encapsulation in Fluorinated Arylene Vinylene Ether Polymers Possessing Tunable Photoluminescence
New fluorinated arylene vinylene ether (FAVE) polymers were prepared by a facile, metal-free condensation polymerization of fluorene, phenylenevinylene, dithiophene, or thiadiazole chromophore-containing bisphenols with bis(trifluorovinyloxy)biphenyl. The addition of chromophores encapsulated into the polymers were prepared in good yields and characterized by H-1 and F-19 NMR and GPC. Thermal gravimetric analysis (TGA) showed they posses high thermal stability with decomposition temperatures of 340-387 degrees C and 308-443 degrees C in nitrogen and air, respectively. Chromophore inclusion was confirmed by ultraviolet-visible (UV-vis) spectroscopy, which demonstrated tailorable photoluminescence (PL) in both the solution and the solid state by selective substitution of the chromophore. Polymer thin film PL studies revealed notable red-shifts compared with polymer solutions presumably attributable to aggregation in the solid state. Solution quantum yields of the polymers were comparable to those reported for the single chromophores used in this study.