This invention relates to nanocomposites comprising organo-clay and at least one stabilization functionalized thermoplastic polyolefin. Preferably the stabilization functionalized thermoplastic polyolefin is represented by the formula: T-(R.sup.1G).sub.n Wherein T represents the thermoplastic polyolefin Each R.sup.1 is a bridging group, preferably independently selected from the group consisting of C.sub.1 to C.sub.20 aliphatic; C.sub.1 to C.sub.20 aromatic; substituted C.sub.1 to C.sub.20 aliphatic; substituted C.sub.1 to C.sub.20 aromatic; C.sub.1 to C.sub.20 aliphatic ester; C.sub.1 to C.sub.20 aliphatic ether; C.sub.1 to C.sub.20 aliphatic amide; C.sub.1 to C.sub.20 aliphatic imide; n is the number of stabilization functional/bridging groups bound to T and may be from 1-300; and G is selected from one or more of phenols, ketones, hindered amines, substituted phenols, substituted ketones, substituted hindered amines, or combinations thereof.