Conjugated poly(phenylacetylene) films cross-linked with electropolymerized polycarbazole precursors

Timothy Fulghum, S. M. Abdul Karim, Akira Baba, Prasad Taranekar, Takafumi Nakai*, Toshio Masuda, Rigoberto C. Advincula

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

78 Citations (Scopus)


In this work, we describe the synthesis and electropolymerization of conjugated substituted polyacetylenes, poly(N-alkoxy-(p-ethynylphenyl)carbazole) or PPA-Cz-Cn with electropolymerizable carbazole side groups to form conjugated polymer network (CPN) films. The phenylacetylene monomer was functionalized with a carbazole group separated by an alkylene spacer. Polymerization of the monomer in solution is accomplished using a Rh catalyst to form a "precursor polymer". The electrochemical behavior and cross-linking of the carbazole side group was then investigated by cyclic voltammetry (CV) and spectroelectrochemistry. A trend in the redox. electrochemical behavior was observed with varying alkyl spacer length between the poly(phenylacetylene) backbone and carbazole side-group. The resulting film combines the electrooptical properties of the conjugated poly(phenylacetylene) polymer with polycarbazole units in a cross-linked electropolymerized film as evidenced by the CV and spectroelectrochemical behavior. This study emphasizes the preparation of polymer materials with mixed π-conjugated species arising from the electrochemical cross-linking of a designed precursor polymer.

Original languageEnglish
Pages (from-to)1467-1473
Number of pages7
Issue number4
Publication statusPublished - 2006 Feb 21
Externally publishedYes

ASJC Scopus subject areas

  • Materials Chemistry


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