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在三氟化硼V(乙醚)∶V(乙酸)=4∶5的混合电解质体系中直接氧化芴,获得芴聚合物膜,其电导率为0.5 S cm-1,高于在纯三氟化硼乙醚中制得的聚芴的电导率0.25 S cm-1.在三氟化硼乙醚∶乙酸=4∶5的混合电解质体系中获得的聚芴膜具有良好的电化学性质和化学稳定性.FTIR,1H-NMR和量化计算表明反应发生在2,7位.紫外和荧光实验表明电解质中少量聚乙二醇1000的存在有利于聚合链的增长.电镜分析,含聚乙二醇1000情况下制备的聚芴膜外观形貌上为更大的片状物,堆叠更为有序.同时荧光光谱表明聚合物是一种良好的蓝色荧光材料,热重分析表明该混合体系中形成聚芴的热稳定性要优于纯三氟化硼乙醚中获得的聚合物.
Direct oxidation of fluorene in a mixed electrolyte system of boron trifluoride V (ether): V (acetic acid) = 4: 5 yields a fluorene polymer membrane with a conductivity of 0.5 S cm-1, The polyfluorene prepared in boric ether has a conductivity of 0.25 S cm-1, and the polyfluorene film obtained in a mixed electrolyte system of boron trifluoride etherate: acetic acid = 4: 5 has good electrochemical and chemical stability. FTIR, 1H-NMR and quantitative calculations showed that the reaction occurred at the 2,7 position.Ultraviolet and fluorescence experiments showed that the presence of a small amount of polyethylene glycol 1000 in the electrolyte is conducive to the polymerization chain growth.Electron microscopy analysis, with polyethylene glycol 1000 The prepared polyfluorene film has the appearance of larger sheet and the stacking is more orderly.At the same time fluorescence spectroscopy shows that the polymer is a good blue fluorescent material.The thermogravimetric analysis shows that polyfluorene is formed in the mixed system Thermal stability is better than pure boron trifluoride diethyl ether obtained polymer.