6533b86efe1ef96bd12cbf1a

RESEARCH PRODUCT

Compatibility of a statistical copolymer P(EMA-co-MMA) with PS and PMMA

Axel H. E. MüllerD. W. SchubertMichael Pannek

subject

Materials sciencePolymers and PlasticsOrganic ChemistryAnalytical chemistryFlory–Huggins solution theoryCondensed Matter Physicschemistry.chemical_compoundDeuteriumchemistryPolymer chemistryCompatibility (mechanics)Materials ChemistryCopolymerPolymer blendNeutron reflectometryPolystyrene

description

The compositions of coexisting phases and the interface widths in blends of a statistical copolymer of poly(ethylmethacrylate-co -methylmethacrylate) (P(EMA 1-x -co-MMA x )) and a deuterated polystyrene (PS(D)) as well as a deuterated poly(methylmethacrylate) (PMMA(D)) have been investigated by neutron reflectometry (NR). Interaction parameters are calculated from the compositions of coexisting phases and the interface width values. Utilizing a novel two dimensional scheme for graphical representation of the interaction parameters, the results are in very good agreement with studies on the interaction parameters for PS/PMMA, PS/PEMA and PEMA/PMMA blends. In particular, χ EMA/MMA deduced from a NR experiment on a P(EMA-block-MMA(D)) diblock copolymer fits excellent into the scheme.

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