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Inorganic-Organic Hybrid Polymers from the Polymerisation of Methacrylate-Substituted Oxotantalum Clusters with Methylmethacrylate: A Thermomechanical and Spectroscopic Study

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Abstract

New inorganic-organic hybrid materials were prepared by free-radical polymerization of methyl methacrylate (MMA) with methacrylate-substituted oxotantalum cluster [Ta4O4(OEt)8(OMc)4] and their properties evaluated. The cluster was prepared by the reaction of the parent alkoxide with methacrylic acid. Samples of the hybrid materials were produced with Ta-cluster to methyl methacrylate in the ratios of 1:50 and 1:100 and were characterized by thermal and spectroscopic techniques. The glass transition temperatures of the hybrid materials are shifted to higher temperatures than pure PMMA as a result of cross-linking of the polymer by the oxotantalum clusters. The increase in T g is also observed from the dynamic mechanical analysis (DMA). Evidence of crosslinking between the Ta-cluster and PMMA is obtained from infrared spectroscopic study. Surface studies performed by X-ray photoelectron spectroscopy (XPS) provide information about the atomic concentrations of the surface and indicate tantalum bonded to oxygen.

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Author notes

  1. Janis Matisons

    Present address: Flinders University, South Australia

Authors and Affiliations

  1. Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus SA 5095, Australia

    Angelika Basch, Namita Roy Choudhury & Janis Matisons

  2. Institute of Molecular Science and Technology-CNR, Department of Chemical Science, University of Padova, Padova, Italy

    Silvia Gross

Authors
  1. Angelika Basch
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  2. Silvia Gross
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  3. Namita Roy Choudhury
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  4. Janis Matisons
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Basch, A., Gross, S., Choudhury, N.R. et al. Inorganic-Organic Hybrid Polymers from the Polymerisation of Methacrylate-Substituted Oxotantalum Clusters with Methylmethacrylate: A Thermomechanical and Spectroscopic Study. J Sol-Gel Sci Technol 33, 39–45 (2005). https://doi.org/10.1007/s10971-005-6697-8

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  • DOI: https://doi.org/10.1007/s10971-005-6697-8

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