Abstract
Copolymers of poly(styrene-co-4-vinylpyridine) (SV p ) and poly(butyl methacrylate-co-4-vinylpyridine) (BmaV p ) containing common minor units of pyridine were prepared. The blends of BmaV p /SV p were reacted with a series of metal acetates and carboxylic acids respectively. Due to coordination complexation between the V p units and metal-ions and proton-transfer from the acids to V p units, in both cases the two component ionomers carry positive charge. DSC examination of the two kinds of blends show an apparent miscibility enhancement by introducing the ion groups although there is no favorable columbic interaction between the component ionomers. These results provide a new evidence of compatibilization in the blends of the ionomers with an identical charge
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