Formation of interfaces in incompatible polymer blends: a dynamical mean field study

Chuck Yeung, An Chang Shi

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

The interdiffusion dynamics of a polymer interface towards its equilibrium profile is studied using a dynamical mean field method, in which the nonequilibrium chemical potentials are evaluated numerically using the full polymer mean field free energy. Our results demonstrated that the interfacial width grows as t 1/4 at early times and saturates to the equilibrium thickness at long times, in agreement with previous, more approximate analysis based on Cahn-Hilliard-type theories. Furthermore, we show that the dynamical exponent can only be obtained unequivocally via a scaling analysis. The interdiffusion of a polymer interface in the single phase regime is also studied.

Original languageEnglish (US)
Pages (from-to)3637-3642
Number of pages6
JournalMacromolecules
Volume32
Issue number11
DOIs
StatePublished - Jun 1 1999

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Formation of interfaces in incompatible polymer blends: a dynamical mean field study'. Together they form a unique fingerprint.

  • Cite this