2-Phenyhhiophene(P2PT) has been electrochemically polymerized in pure boron trifluofide diethyl ether (BFEE) solutions or in a composite electrolyte of BFEE and trifluoroacetic acid (TFA)．The addition of a certain amounl of TFA into BFEE lowered the oxidation potential of the monomer

accelerated the polymerization and also increased the current efficiency of the electrosyntbesis．The morphology and electrochemical behavior of as-grown P2PT films were studied by scanning electron microscopy and cyclic vohammetry．Poly (2-phenyhhiophene) in dedopod state is soluble in usual organic solvents such as tetrahydmfuran and chloroform

etc．Its structure has been examined by infrared

Raman and UV-visible spectroscopies．The molecular weight of the polymer was measured to be about 800 Da．Fluorescent spectral studies indicate the polymer is a blue-green light emitter．