dual phase model for crystalline polymers table 1 gives the changes in the three average parameters as functions of the composition ratio of the nanoblend as well as that of the same blend processed at a low shear rate the fact that the high shear processed blend samples show an enlarged long period and an amorphous layer thickness indicates the chain incorporation between pvdf and pa11 during the high shear processing these results are highly consistent with those of the edx tem analysis in contrast there is no change in the long period for the low shear processed sample indicating the immiscibility between pvdf and pa11 at a low shear rate from the results of saxs and tem edx measurements it is suggested that pvdf and pa11 molecular chains insert into the amorphous region of the other component and result in an extended long period of the lamellar structure fig6 shows the stress strain curves of neat pvdf a pvdf pa11 80 20 blends processed at a low shear b pvdf pa11 80 20 blends processed at a high shear c and neat pa11 d the yield stress of the pvdf pa11 80 20 blend processed at a high shear was almost the.