摘要 |
Multifunctional 3,4-alkylenedioxythiophene derivatives represented by formula (I) are described, In formula (I), n and m each independently of each other, and independently for each o, are an integer from 1 to 5, and o is 3 or 4. The groups R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3 </SUP>and R<SUP>4 </SUP>are independently of each other and independently for each o, selected from, for example, hydrogen, halogen and optionally substituted linear or branched C<SUB>1</SUB>-C<SUB>20</SUB>-alkyl. The group R- of formula (I) may be, independently for each o, hydrogen or a thiophene represented by the following formula (II), in which m, n, R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3 </SUP>and R<SUP>4 </SUP>are as described in formula (I). The group X- of formula (I) is a polyvalent linking unit (e.g., a triphenylamine radical). Also described are electrically conductive oligomers and polymers comprising the multifunctional 3,4-alkylenedioxythiophene derivatives of the present invention as a repeating or crosslinking unit.
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