Synthesis and Molecular Weight Dependent Optical Properties of Mono-Alkoxy Substituted Polythiophenes


Poly(3-alkoxythiophene)s with moderately high molecular weights, which exhibit good solubility and film-forming ability, were successfully synthesized by the nickel (0) coupling reaction in good yields. The introduction of a branched side chain resulted in a molecular weight higher than that of the straight one. Broad photoluminescence (PL), ranging from 579 to 684 nm, was readily obtained by choosing the appropriate molecular weight sample of a mother polymer. This may provide a new method for evaluating organic luminescent materials.


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Zhang, ZB., Fujiki, M. Synthesis and Molecular Weight Dependent Optical Properties of Mono-Alkoxy Substituted Polythiophenes. Polym J 33, 597–601 (2001).

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  • Poly(3-alkoxythiophene)
  • Nickel Catalyst
  • Molecular Weight
  • Optical Properties

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