| 摘要 |
A polymeric fluorescent substance which is soluble, has a number-average molecular weight of 103-107 and contains three different repeating units -Ar-CH=CH-, wherein Ar is a arylene group having 6-20 carbon atoms, a heterocyclic compound group having 4-20 carbon atoms or a divalent group -Ar1-X1-R-X2,-Ar2. At least one of the repeating units has at least one substituent selected from alkyl, alkoxy and alkylthio groups having 2-22 carbon atoms, aryl and aryloxy groups having 6-60 carbon atoms and heterocyclic compound groups having 4-60 carbon atoms. Ar1 and Ar2 are each an arylene group having 6-20 carbon atoms or a heterocyclic compound group having 4-20 carbon atoms and may contain at least one substituent selected from alkyl, alkoxyl and alkylthio groups having 2-22 carbon atoms, aryl and aryloxy groups having 6-60 carbon atoms and heterocyclic compound groups having 4-60 carbon atoms. R is a hydrocarbon or heterocyclic compound group having 1-22 carbon atoms. X1 and X2 independently represent -O-, -S-, -COO- or -OCO-.
|
