| 초록 |
The conjugated cyclopolymer, poly(9,9-dipropargylfluorene), was prepared by the ring-forming polymerization of 9,9-dipropargylfluorene by (bicyclo[2.2.1]hepta-2,5-diene)dichloropalladium(II) in high yield. The chemical structure of poly(9,9-dipropargylfluorene) was characterized by such fundamental methods as NMR (1H, 13C), IR, UV–vis spectroscopies, and elemental analysis to have the conjugated polymer backbone bearing fluorene moieties. Poly(9,9-dipropargylfluorene) showed characteristic UV–vis absorption band at 307 and 324 nm and violet-blue PL spectrum at 411 nm, corresponding to a photon energy of 3.01 eV. The cyclic voltamogram of the polymer showed reversible electrochemical behavior between the doped and undoped peaks. It has been found that the rate of redox reaction of the polymer is controlled by the electron transfer process and the mixed diffusion process from the experiment of the scan rate versus the oxidation current density of the polymer. |
