polymer compatibilizer

Polymericadditive that, when added to a blend of immiscible polymers, modifies their interfaces and stabilizes the blend.
Note:
Typical polymer compatibilizers are block or graft copolymers.
Source:
PAC, 2004, 76, 889 (Definitions of terms relating to reactions of polymers and to functional polymeric materials (IUPAC Recommendations 2003)) on page 901