The photo-oxidation of polypropylene/montmorillonite nanocomposites has been studied under irradiation at long wavelengths (λ > 300 nm) at 60 °C and in the presence of oxygen. The chemical modifications resulting from photo-oxidation were followed by IR and UV−visible spectroscopies for each component of these nanocomposites polypropylene (PP), organo-modified montmorillonite (MMt), and the compatibilizing agent (maleic anhydride- grafted -polypropylene). We have found that the mechanism of photo-oxidation of the polypropylene component was not modified in the polymer−nanocomposite, but that the rates of oxidation were modified, leading to an unexpected decrease of the durability of the material.
No takes yet. Share an insight, caveat, or question.
Morlat et al. (2004) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: