Polymere fluoreszierende Substanz, Herstellungsverfahren dafür und polymere Licht emittierende Vorrichtung

摘要

A process for producing a polymeric fluorescent material characterized by comprising a step in which a crude polymeric fluorescent material which fluoresces in a solid state, has a number−average molecular weight of 104 to 108 in terms of polystyrene, and comprises one or more kinds of repeating units represented by the following formula (1) is brought into contact with an alkali:−Ar1−(CR1=CR2)n−(1)(wherein Ar1 represents an arylene or heterocyclic compound group which optionally has one or more substituents; R1 and R2 each independently represents hydrogen or a group selected from the group consisting of alkyl, aryl, heterocyclic compound, and cyano groups, provided that the aryl and heterocyclic compound groups may be optionally substituted; and n is 0 or 1).