Polypropylene metal functionalised POSS nanocomposites: a study by thermogravimetric analysis

A. Fina (Corresponding author), H. C.L. Abbenhuis, D. Tabuani, A. Frache, G. Camino

    Research output: Contribution to journalArticleAcademicpeer-review

    102 Citations (Scopus)

    Abstract

    Dimeric and oligomeric Al and Zn-containing isobutyl silsesquioxanes (POSS) were studied to investigate their thermal stability both in inert and oxidant atmosphere, by means of Differential Scanning Calorimetry (DSC) and thermogravimetric analyses (TGA). Thermo-oxidative degradation leads to an important solid residue yield, as a consequence of the POSS oxidation to a thermally stable ceramic phase. The study of the differences in degradation pathways of both metal POSS derivatives clearly shows a competition between two possible mechanisms for product thermal behaviour, namely evaporation and oxidation. The metal POSS compounds were incorporated via melt blending into a PP matrix and the composites thermal properties were studied by thermogravimetric analyses. Thermo-oxidative degradation of composites is strongly affected by the presence of metal containing POSS, resulting in an improved thermal stability, in terms of higher weight loss temperature.

    Original languageEnglish
    Pages (from-to)1064-1070
    Number of pages7
    JournalPolymer Degradation and Stability
    Volume91
    Issue number5
    DOIs
    Publication statusPublished - 1 May 2006

    Keywords

    • Nanocomposites
    • POSS
    • Silsesquioxanes
    • Thermal degradation

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