Block copolymers have been more frequently investigated than graft copolymers, and in particular block copolymers containing blocks chemically identical toftheblenglwcompongmpolymers. It is perhaps not surprisingmtflhat block'and graft copolymers containing segments chemically identical to the blend components are obvi-
ous choices as compatibilisers, giyéfilfiat miscibility between the copolymer 7segfrfiefifiafidifliecofies‘ponding blend component is assured, provided the copolymer meets certain “structural and molecular we1hiTé§fiirementg and. ,
that the copolymer locates preferet’s’f‘. ei-imerfibces Tm 3 view of how such copolymers I 2 7 i 7 i ' w experimental verification
for example Barentsen et al '