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Issue 5, 2016
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Synthesis of platinum-containing poly(phenyleneethynylene)s having various chromophores: aggregation and optical properties

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Abstract

The Sonogashira–Hagihara coupling polymerization of platinum-containing m,m-phenylene and p,p-phenylene-linked diethynyl monomers m,m-1 and p,p-1 with 1,4-dibromobenzene 2a, 1,4-dibromonaphthalene 2b and 9,10-dibromoanthracene 2c was carried out to obtain the corresponding platinum-containing polymers [poly(m,m-1-2a)–poly(m,m-1-2c)] and [poly(p,p-1-2a)–poly(p,p-1-2c)] with Mn's ranging from 4,300 to 28 000 in 24%-quantitative yields. The UV-vis absorption and emission properties of the formed polymers were measured in various solvents to examine the solvent effect on the optical properties. These polymers emitted fluorescence at 400–600 nm with 3.4–18.0% quantum yields in THF, CHCl3 and CH2Cl2. The fluorescence intensities of the polymers remarkably decreased upon raising the MeOH concentration in THF/MeOH mixtures, accompanying the formation of aggregates.

Graphical abstract: Synthesis of platinum-containing poly(phenyleneethynylene)s having various chromophores: aggregation and optical properties

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Publication details

The article was received on 02 Oct 2015, accepted on 10 Dec 2015 and first published on 11 Dec 2015


Article type: Paper
DOI: 10.1039/C5PY01584G
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Citation: Polym. Chem., 2016,7, 1070-1078

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    Synthesis of platinum-containing poly(phenyleneethynylene)s having various chromophores: aggregation and optical properties

    Y. Miyagi, Y. Shibutani, Y. Otaki and F. Sanda, Polym. Chem., 2016, 7, 1070
    DOI: 10.1039/C5PY01584G

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