Adsorption of a minority component in polymer blend interfaces

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Abstract

We analyze the adsorption per interfacial thickness of the minority component C, [Formula Presented], in the interfaces between A and B rich phases in ternary polymer blends as a function of [Formula Presented]<cphi[Formula Presented]=cphi[Formula Presented], where [Formula Presented] is the mean composition of I, and the net interaction per thermal energy between I and J, [Formula Presented]. We find [Formula Presented] solving numerically the nonlinear decomposition equations in the steady state. When C is nonselective, [Formula Presented]=[Formula Presented]=η[Formula Presented], [Formula Presented] increases as η increases and it is linear with [Formula Presented] for [Formula Presented]≪cphi[Formula Presented]+cphi[Formula Presented]. For selective C, [Formula Presented]=η[Formula Presented] and [Formula Presented]=ɛ[Formula Presented], in the case of minimum adsorption, η=0, [Formula Presented] decreases as ɛ increases and it vanishes when ɛ≥1.

Original languageEnglish (US)
Pages (from-to)812-819
Number of pages8
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume53
Issue number1
DOIs
StatePublished - Jan 1 1996

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)

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