1. Preparation and characterization of polyhedral oligomeric silsesquioxane/polystyrene nanocomposites
- Author
-
Kang Wang, Benhong Yang, Meng Li, and Yun Wu
- Subjects
chemistry.chemical_compound ,Nanocomposite ,Materials science ,Polymers and Plastics ,chemistry ,Chemical engineering ,General Chemical Engineering ,Polystyrene ,Physical and Theoretical Chemistry ,Silsesquioxane ,Characterization (materials science) - Abstract
Several inorganic/organic nanocomposites were prepared via solution-blending of cage-like octahexyl-polyhedral oligomeric silsesquioxane (Oh-POSS) with polystyrene (PS) in THF solvent. FTIR and 29Si-NMR were employed to characterize the structures of the nanocomposites. SEM pictures showed that the sample films were smooth and no POSS aggregation was observed when POSS content was lower than 1.0 wt%. TGA and DSC were used to investigate the thermal property. The results showed that the incorporation of nanosized Oh-POSS enhanced the thermal stability of PS with low POSS content. When 1.0 wt% of Oh-POSS was incorporated into PS matrix, the Tg and Td increased by 7.7 °C and 8.2 °C, respectively. However, higher POSS contents (>1.0 wt%) would deteriorate the thermal property of the nanocomposites due to the severe congregation of POSS..
- Published
- 2012
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