کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
194659 | 459797 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Electrosyntheses of high quality free-standing poly(9-fluorenone) films in boron trifluoride diethyl etherate Electrosyntheses of high quality free-standing poly(9-fluorenone) films in boron trifluoride diethyl etherate](/preview/png/194659.png)
High quality free-standing poly(9-fluorenone) (PFO) films were synthesized electrochemically by direct anodic oxidation of 9-fluorenone (FO) in pure boron trifluoride diethyl etherate (BFEE). The oxidation potential of FO in this medium was measured to be only 1.48 V versus SCE, which was greatly lower than that determined in CH2Cl2 + 0.1 mol l−1 Bu4NBF4 (2.21 V versus SCE). PFO films obtained from BFEE showed good electrochemical behavior, good thermal stability with electrical conductivity of 7.8 × 10−3 S cm−1, indicating that BFEE was a better medium than CH2Cl2 for the electrosyntheses of PFO films. Structural studies showed that the polymerization of FO ring occurred at 2,7-position. As-formed PFO films can be partly dissolved in acetone and tetrahydrofuran (THF). Fluorescent spectral studies indicate that PFO is a good blue light emitter. To the best of our knowledge, this is the first report on the electrosyntheses of free-standing PFO films.
Journal: Electrochimica Acta - Volume 51, Issue 26, 15 August 2006, Pages 5738–5745