6533b86efe1ef96bd12cbf1a
RESEARCH PRODUCT
Compatibility of a statistical copolymer P(EMA-co-MMA) with PS and PMMA
Axel H. E. MüllerD. W. SchubertMichael Panneksubject
Materials sciencePolymers and PlasticsOrganic ChemistryAnalytical chemistryFlory–Huggins solution theoryCondensed Matter Physicschemistry.chemical_compoundDeuteriumchemistryPolymer chemistryCompatibility (mechanics)Materials ChemistryCopolymerPolymer blendNeutron reflectometryPolystyrenedescription
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.
year | journal | country | edition | language |
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1999-12-01 |