Abstract
We analyze the thermodynamics of disklike particles dispersed in a polymer matrix. Using the Somoza−Tarazona free energy functional for thin oblate ellipsoids of revolution in combination with the Flory−Huggins mixing free energy, we obtain a new expression that allows us to describe the complete (liquid, crystalline, and liquid crystalline) phase diagram for the mixture as a function of shape anisotropy κ, polymer chain length N, and the disk−disk interaction parameter, q. It is shown that at large q and/or N positional ordering plays an important role in determining the stability and morphology of such mixtures.
Keywords
Phase diagramPolymerAnisotropyMaterials sciencePhase (matter)ThermodynamicsMixing (physics)EllipsoidFlory–Huggins solution theoryDensity functional theoryFunction (biology)Matrix (chemical analysis)Chain (unit)Composite materialChemistryPhysicsComputational chemistryOrganic chemistryOptics
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Publication Info
- Year
- 1999
- Type
- article
- Volume
- 32
- Issue
- 17
- Pages
- 5681-5688
- Citations
- 121
- Access
- Closed
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Cite This
Valeriy V. Ginzburg,
Anna C. Balazs
(1999).
Calculating Phase Diagrams of Polymer−Platelet Mixtures Using Density Functional Theory: Implications for Polymer/Clay Composites.
Macromolecules
, 32
(17)
, 5681-5688.
https://doi.org/10.1021/ma990135t
Identifiers
- DOI
- 10.1021/ma990135t