Non-linear dynamics of spinodal decomposition in multi-component polymer systems. I. General approach

• Authors: Ekaterina Prostomolotova
• Languages of publication: EN

Abstracts

EN

Spinodal decomposition of multi-component systems is analyzed within the framework of a new approach focusing on the description of this dynamic process in terms of the Langevin equation for the one-time structure factor S(q, t) treated as an independent dynamic object. We apply this approach, in particular, to multi-component incompressible polymer systems (binary polymer solutions, ternary polymer blends etc.). The dynamic equation describing the simultaneous relaxation of both the order parameters (component concentrations) and the matrix of the component-component dynamic correlation functions ∥S
ij(q, t)∥, including the explicit expression for the corresponding effective kinetic coefficients, is derived.

Keywords

EN

Spinodal decomposition; phase ordering dynamics; multi-component systems

Discipline

• 64.60.Cn: Order-disorder transformations(see also 81.30.Hd Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder in materials science; for effects of disorder on superconducting transition temperature, see 74.62.En)
• 82.60.Lf: Thermodynamics of solutions

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2007
• Volume: 5
• Issue: 1
• Pages: 35-48

Dates

published

1 - 3 - 2007

online

1 - 3 - 2007

Contributors

author

Ekaterina Prostomolotova

• Faculty of Physics, Moscow State University, 119992, Moscow, Russia

References

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Identifiers

DOI

10.2478/s11534-006-0042-x