Research

Self-consistent field theory of brushes of neutral water-soluble polymers

V.A. Baulin, E.B. Zhulina, A. Halperin
J. Chem. Phys., 119, 2874 (2003)
The self-consistent field theory of brushes of neutral water-soluble polymers described by two-state models is formulated in terms of the effective Flory interaction parameter χeff(T,ϕ) that depends on both temperature, T, and the monomer volume fraction, ϕ. The concentration profiles, distribution of free ends and […]

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Signatures of a concentration dependent Flory chi parameter: swelling and collapse of coils and brushes

V. A. Baulin and A. Halperin
Macromolecules, 35, 6432 – 6438 (2002)
The quality of solvents of polymers is often described in terms of the Flory χ parameter typically assumed to depend only on the temperature, T. In certain polymer-solvent systems fitting the experimental data enforces the replacement of (χT) by a concentration-dependent χeff. In turn, this modifies […]

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