The present invention provides a method to form a nanocomposite including
blending a high molecular weight elastomer, a low molecular weight
elastomer, and a clay to form a nanocomposite; wherein the high molecular
weight elastomer has a weight average molecular weight greater than
250000; wherein the low molecular weight elastomer has a weight average
molecular weight less than 150000. In another embodiment, the invention
provides a method to form a nanocomposite including the steps of blending
a low molecular weight elastomer and a clay to form a first mixture;
blending a high molecular weight elastomer and the first mixture to form
the nanocomposite; wherein the low molecular weight elastomer has a
weight average molecular weight less than 150000; and, wherein the high
molecular weight elastomer has a weight average molecular weight greater
than 250000.