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RESEARCH PRODUCT
Modelling the Influence of Nanoparticles in the Phase Behaviour of an Epoxy/Polystyrene Mixture, 2
Agustín CamposIsidro S. MonzóJuan E. FiguerueloConcepción AbadClara M. Gómezsubject
Materials sciencePolymers and PlasticsOrganic ChemistryConcentration effectNanoparticleEpoxyCondensed Matter PhysicsInorganic Chemistrychemistry.chemical_compoundchemistryChemical engineeringvisual_artPhase (matter)Polymer chemistryMaterials Chemistryvisual_art.visual_art_mediumRadius of gyrationParticleParticle sizePolystyrenedescription
The influences of nanoparticle size and concentration on the thermodynamic behaviour of epoxy/polystyrene blends are evaluated in the framework of Ginzburg's simple analytical theory. Two approaches have been employed: NPEPO (for particles coated with epoxy groups) and NPFEN (for particles coated with phenyl groups). Using NPEPO, the particles are found to prefer the phase richer in epoxy, whereas the opposite occurs for NPFEN. The particles size significantly influences blend compatibility. When the particle radius Rp is about the same size as the radius of gyration R g of PS, the compatibility of blends increases with particle concentration, whereas for R p > R g , higher particle concentrations do not clearly stabilize the polymeric blends.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-05-25 | Macromolecular Theory and Simulations |