Covalent attachment of Polyhedral Oligomeric Silsesquixoane (POSS) to the surface of multi-walled carbon nanotubes (CNT) can increase CNT dispersion in solution and in polymer matrices. While covalently attached dispersants generally provide a greater degree of dispersion than physically adsorbed dispersants, they degrade the CNT properties. The effects of POSS structure, functionality and the length of the tether to the CNT surface on CNT dispersion were evaluated, and compared to the dispersion achieved with non-covalently attached POSS dispersants. Mechanical, thermal and electrical properties of the nanocomposites will be discussed. 

Carbon nanotube nanocomposites with POSS dispersants for enhanced performance

246th National Meeting (2013)

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