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Updated: May 11, 2026

Using Polystyrene-block-poly(acrylic acid)-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
Published on: July 9, 2015
Dynamic heterogeneity in fully miscible blends of polystyrene with oligostyrene
Vagelis A Harmandaris1, Kurt Kremer, George Floudas
1Department of Applied Mathematics, University of Crete, and IACM FORTH GR-71110 Heraklion, Greece. vagelis@tem.uoc.gr
Abstract:
Binary blends of polystyrene with oligostyrene are perfectly miscible (χ=0) yet dynamically heterogeneous. This is evidenced by independent probing of the dipole relaxation perpendicular to the backbone by dielectric spectroscopy and molecular dynamics. The self-concentration model with a single intramolecular length scale qualitatively describes the slower segmental dynamics. A quantitative comparison based on MD, however, requires a composition-dependent length scale. The pertinent dynamic length scale that best describes the slow segmental dynamics in miscible blends relates to both intra- and intermolecular contributions.
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