Thioxanthone–carbazole as a visible light photoinitiator for free radical polymerization

Authors

  • Gorkem Yilmaz,

    1. Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul TR-34469, Turkey
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  • Alev Tuzun,

    1. Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul TR-34469, Turkey
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  • Yusuf Yagci

    Corresponding author
    1. Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul TR-34469, Turkey
    • Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, Maslak, Istanbul TR-34469, Turkey
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Abstract

A thioxanthone (TX) derivative with the additional carbazole chromophore, namely thioxanthone-carbazole (TX-C) was synthesized and characterized. The photophysical properties and its efficiency to polymerize methyl methacrylate both in the presence and absence of N,N-dimethylaniline (DMA) as coinitiator was investigated and compared with that of the commercially available TX. TX-C was found to display better photophysical properties and in both cases initiate polymerization more efficiently. Detailed real-time Fourier transform infrared studies revealed that high polymerization rates can be obtained when TX-C in conjunction with DMA was used. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010

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