Polyhedral Oligomeric silsesquioxanes (POSS) is nanoparticles, A useful for the reinforcement of the polymer.
Molecular structure as Cage-like , chemical formula is (RSiO1.5)n
Used as inorganic particles in hybrid composites by mixing or covalently attaching to organic polymers
POSS hybrids with organic polymers are made by attaching reactive organic group to POSS
POSS raises thermal stability, mechanical strength and modulus of organic polymers, particularly when attached through covalent bonds.