Scaling of interfacial properties in ternary polymer blends

C. Huang*, M. Olvera De La Cruz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We analyze interfaces between A-righ and B-rich phases in symmetric ternary polymer blends with a non-selective C minority component. The interfacial tension σ and the interfacial thicknesses of the composition profiles of φA(cursive Greek chi) - φB(cursive Greek chi), and φC(cursive Greek chi), L1 and L2, respectively, are calculated by solving the linearized equation resulting from minimizing σ as a function of the average composition of C, φ̄C = 1 - φ̄, with φ̄/2 = φ̄A = φ̄B&, and the net, interaction per thermal energy between components A and B, χAB = χ (χAC = χBC = ηχ). As φ̄C increases the interfacial thickness increases and the interfacial tension decreases. Our results are in excellent agreement with the steady-state solution of the non-linear spinodal decomposition equations.

Original languageEnglish (US)
Pages (from-to)171-175
Number of pages5
JournalEurophysics Letters
Volume34
Issue number3
DOIs
StatePublished - Apr 20 1996

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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