Thermal decomposition studies of the polyhedral oligomeric silsesquioxane, POSSh, and when it is impregnated with the metallocene bis(η5-cyclopentadienyl)zirconium(IV) dichloride or immobilized on silica
Bianchini, Daniela, Butler, Ian S., Barsan, Mirela M., Martens, Wayde N., Frost, Ray L., Galland, Griselda B., & dos Santos, Joao H.Z. (2008) Thermal decomposition studies of the polyhedral oligomeric silsesquioxane, POSSh, and when it is impregnated with the metallocene bis(η5-cyclopentadienyl)zirconium(IV) dichloride or immobilized on silica. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 71(1), pp. 45-52.
Thermal decomposition studies of the free polyhedral oligomeric silsesquioxane, POSSh, and when this species has been impregnated with Cp2ZrCl2 (Cp = 5-C5H5) or immobilized on SiO2 were conducted using infrared emission spectroscopy (IES) over a 100-1000 oC temperature range and by thermogravimetric analysis (TGA). The organic groups in POSSh apparently decompose thermally into Si-CH3, Si-H and other fragments. Upon impregnation with Cp2ZrCl2 however, a different thermal decomposition pathway was followed and new infrared emission bands appeared in the 1000-900 cm-1 region suggesting the formation of Si-O-Zr moieties. When immobilized on SiO2 and subjected to thermal decomposition, the POSSh species lost its organic groups and the inorganic structure remaining was incorporated into the SiO2 framework.
Impact and interest:
Citation counts are sourced monthly from and citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
Repository Staff Only: item control page