Preparation And Properties Of Poly(2-aminofluorene) Particles Using Three Methods

Poly(2-aminofluorene) particles were synthesized by Solid-statereaction polymerization,Electrochemical polymerization and ultrasonic initiation polymerization.In this study,three kinds of polymers including emeralidine base,HClPAF,CSAPAF,were synthesized by Ultrasonic induced polymerization.Their structural texture of undoped and doped Poly(2-aminofluorene) are investigated by FT-IR and UV-Vis spectra.The results show that different doping Poly(2-aminofluorene) possess various structure and conductivity.We also analyse the effect of polymers'structure variety on conductivity,and explain these results reasonably.In this paper we used three methods and have done the following works:(1) Poly(2-aminofluorene) particles doped with hydrochlorideacid has been firstly prepared using solid-state reaction synthesis method at room temperature. Poly(2-aminofluorene) microparticles were characterized by FT-IR spectra,UV-vis absorption spectra,SEM,XRD and cyclic voltammogram. Rasules showed that the average size of Poly(2-aminofluorene) particles doped with hydrochlorideacid obtained by this method was about 0.1μm,and the poly(2-aminofluorene) particles were spherical in shape. XRD measurements indicated that the poly(2-aminofluorene) particles were crystalline. The cyclic voltammogram of poly(2-aminofluorene) showed good electrochemical properties.(2) High quality poly(2-aminofluorene) films were synthesized electrochemically by direct oxidation of 2-aminofluorene in methanol containing 0.05mol/L LiClO4 .Poly(2-aminofluorene) were characterized by FT-IR spectra,UV-vis absorption spectra,SEM and cyclic voltammogram. Rasules showed that the average size of Poly(2-aminofluorene) particles obtained by this method was about 100~200nm.The cyclic voltammogram of poly(2-aminofluorene) films showed good electrochemical properties.(3) Ultrasonic induced polymerization of 2-aminofluorene in the prescene of Sodium Dodecylbenzene Sulphate as Surfactant. Poly(2-aminofluorene) microparticles were characterized by FT-IR spectra,fluorescent spectra,UV-vis absorption spectra,SEM,and XRD.Results showed that the average size of Poly(2-aminofluorene) particles obtained by this method was about 100~200nm,and the poly(2-aminofluorene) particles were spherical in shape. XRD measurements indicated that the poly(2-aminofluorene) particles were crystalline.Furthermore,we found that regular shaped PAF particles can be synthesized just when the 2AF/SDBS molar ratio is right.(4) In this study,three kinds of polymers including emeralidine base,HClPAF,CSAPAF,were synthesized by Ultrasonic induced polymerization.Their structural texture of undoped and doped Poly(2-aminofluorene) are investigated by FT-IR and UV-Vis spectra.The results show that different doping Poly(2-aminofluorene) possess various structure and conductivity.We also analyse the effect of polymers'structure variety on conductivity,and explain these results reasonably.(5)Poly(2-aminofluorene) particles synthesized by different means were characterized by UV-vis absorption spectra,XRD and cyclic voltammogram. Rasules showed that the polymer synthesized by Ultrasonic induced polymerization displays lower electrochemical activity and the polymer doped with acid were crystalline and displays better electrochemical activity.