6533b860fe1ef96bd12c2eaa
RESEARCH PRODUCT
Neutron reflectometry studies on the interfacial width between polystyrene and various poly(alkylmethacrylates)
Dirk W. SchubertAxel H. E. MüllerManfred Stammsubject
chemistry.chemical_classificationMaterials sciencePolymers and PlasticsAnalytical chemistryGeneral ChemistryPolymerFlory–Huggins solution theorychemistry.chemical_compoundchemistryPolymer chemistryMaterials ChemistryNeutron reflectometryPolymer blendPolystyreneGlass transitionLayer (electronics)Alkyldescription
From neutron reflectometry we have obtained the interfacial width (typically 2-8 nm) between incompatible polymers above the glass transition temperatures. The investigated polymer bilayers consist of a deuterated polystyrene top layer and various poly(alkylmethacrylates) as a bottom layer. We obtained interesting effects of the length of the alkyl group on the interfacial width. Using mean-field theory we calculate Flory-Huggins-Stavermann interaction parameters X from the interfacial width a I data. These results are compared with investigations of the interfacial width between deuterated poly(methylmethacrylate) and respective polyalkyl-methacrylates.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-08-01 | Polymer Engineering & Science |