Study On The Electorchemical Polymerization And Properties Of Ploy[9-(Bisalkylthiomethylene-9H) Fluorene]

Conductive polymer such as polypyrrole, polythiophene, polyaniline, poly indole, etc. for its excellent optical properties, electrical properties, as well as specific material properties has been widespread concern. Polyfluorene and its derivatives with a wide band a rigid planar biphenyl structure, high luminous efficiency thermal stability and chemical stability, electroluminescence, photo luminescence power generation devices are widely applied. Polyfluorene and replace polyfluorene can be chemical polymerization and electrochemical polymerization. Each method has its advantages and disadvantages. Electrochemical polymerization compared to the chemical polymerization, with a simple, step film, etc.This article focused on replacing the polyfluorene photovoltaic performance, Use of fluorine,9-easily modified the nature of the design and synthesis of a series of9-bit is containing (RS)2C=structural unit of group substituted polyfluorene derivatives. Choice of different RS-C=groups, the regulation to replace the the polyfluorene solubility in organic solvents, co-planarity of the polymer π-π stacking mode, etc, to explore the low oxidation potential, the absorption band width narrow bandgap high thermal stability, good film-forming poly (9-Two thio Asia fork fluorene)(RS)2C=CC12H8. Research include;1. In the presence of the weak base, starting with readily available reagents, synthesized a series of9-dimercapto Nokia fork fluorene and9-hydrocarbons, sulfur Nokia fork fluorine (RS)2C=CC12H8. R are-H,-CH3,-C2H5, C3H5,-CH2Ph,-C12H25.2. In one room, three-electrode system (RS)2C=CC12H8implementation of the electrochemical polymerization. By changing the electrolyte composition and concentration of monomer in the scan rate50mV/s, and temperature of22℃, humidity32%, circle the number10, the potential scan range-0.2V-2V synthesized a series of poly ((RS)2C=CC12H8)(poly thio-substituted fluorene, PTSF).3. Using chemical polymerization polymerization of9-substituted fluorene (the RS)2C=CC12H8, and the electrochemical polymerization methods PTSF, to compare their electrochemical properties, optical properties and mechanical properties.4. PTSF electric gathered using two different electrolytes:1) of FeCl3in acetonitrile) of boron trifluoride ethyl ether (BFEE) solution. The results show that in the BFEE the polymerization can have more dense polymer film.5. PTSF electric together, the monomer concentration of2×10-2mol/L and5×10-2mol/L. The results showed that the higher concentration of monomer when the polymerization is fast off the polymer on the electrode surface.