Microscopic theory of the structure, thermodynamics, and apparent X parameter of polymer blends

Kenneth S. Schweizer, John G. Curro

Research output: Contribution to journalArticlepeer-review

Abstract

A general off-lattice microscopic theory of the equilibrium properties of polymer mixtures is developed based on reference interaction site model integral equation methods. A derivation of a random-phase-approximation like scattering function is presented along with a fully microscopic, general formula for the effective X parameter measured in small-angle neutron-scattering experiments. Numerical results for X of an athermal, Gaussian-chain polymer binary blend are presented as a function of concentration, packing fraction, molecular weight, and structural asymmetry.

Original languageEnglish (US)
Pages (from-to)809-812
Number of pages4
JournalPhysical review letters
Volume60
Issue number9
DOIs
StatePublished - Jan 1 1988
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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