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Issue 13, 2016
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A fast controlled synthesis of poly(p-phenyleneethynylene)s under transition-metal-free conditions

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Abstract

A transition-metal-free polymerization of an AB-type monomer for the synthesis of well-defined poly(p-phenyleneethynylene)s is described. The polymerization of 1-pentafluorophenylethynyl-4-[(trimethylsilyl)ethynyl]benzene with a catalytic amount of tetrabutylammonium fluoride or potassium t-butoxide in the presence of cryptand[2.2.2] affords polymers within a few minutes. When monitoring the polymerization, the molecular weight as a function of monomer conversion shows a linear relationship, where the polydispersity indexes are around 1.6. The polymerization proceeds predominantly via intramolecular fluoride anion transfer to the polymer end. End capping of the active polymerization end is also demonstrated.

Graphical abstract: A fast controlled synthesis of poly(p-phenyleneethynylene)s under transition-metal-free conditions

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Publication details

The article was received on 07 Jan 2016, accepted on 25 Feb 2016 and first published on 08 Mar 2016


Article type: Communication
DOI: 10.1039/C6PY00030D
Citation: Polym. Chem., 2016,7, 2323-2328
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    A fast controlled synthesis of poly(p-phenyleneethynylene)s under transition-metal-free conditions

    A. Motoshige, J. Kakinuma, T. Iyoda and T. Sanji, Polym. Chem., 2016, 7, 2323
    DOI: 10.1039/C6PY00030D

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