Synthesis and properties of soluble, fluorescent polyesters and polyethers with substitutedm-terphenyl segments in the main chain

摘要: A new series of rigid polyesters and semiflexible polyethers were synthesized from 4,4″-dihydroxy-5′-phenyl or anthracenyl-m-terphenyl. The polymers characterized by viscometry, Fourier transform infrared, NMR, X-ray, differential scanning calorimetry, thermomechanical analysis, thermogravimetric ultraviolet–visible, luminescence spectroscopy. amorphous, whereas some the showed a low degree crystallinity. All displayed an enhanced solubility even in 1,1,2,2-tetrachloroethane tetrahydrofuran. glass-transition temperatures 123–146 °C for 45–117 polyethers. stable up to 213–340 afforded anaerobic char yields 36–62% at 800 °C. Their optical properties investigated both solution solid state. They ultraviolet fluorescence, violet-blue with emission maxima 333–487 nm. anthracenyl pendent groups exhibited higher fluorescence quantum redshifted compared corresponding phenyl groups. © 2000 John Wiley & Sons, Inc. J Polym Sci A: Chem 38: 2381–2391,