Thiophenoxysilane polymer for the synthesis of poly (1,4-phenylene vinylene) (PPV), control of conjugation length of PPV derivatives using the same, and method for controlling emission color of electroluminescent device

摘要

The present invention relates to a method for synthesizing poly (1,4-phenylenevinylene) (PPV) and derivatives thereof which is most widely used as a light emitting material of electroluminescent devices, using PPV And to a method for controlling the conjugation length and emission color of a derivative. In the present invention, the thiophenoxy prepolymer is very stable in air,^oThe removal efficiency of the PPV derivative was determined by the following procedure. That is, as shown in FIG. 1, a water-soluble prepolymer which dissolves PPV or PPV derivatives in water is synthesized, and then the desired equivalent amount of sodium thiopheneoxide is reacted with the water-soluble prepolymer synthesized, , And then the polymer was dissolved in 200 RTI ID = 0.0 ^oC, the water-soluble prepolymer moiety is completely eliminated and conjugated, and the moiety substituted with thiophenoxy remains unconjugated because the elimination reaction is not performed at this temperature at all. Thus, the conjugation length of the PPV derivative can be controlled, and the emission wavelength of the PL and the electroluminescent device can be easily controlled through such conjugation control.