Ordering and viscoelastic relaxation in multiarm star polymer melts

D. Vlassopoulos*, T. Pakula, G. Fytas, J. Roovers, K. Karatasos, N. Hadjichristidis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

We present small-angle X-ray scattering measurements in model star homopolymer melts with high functionality, revealing liquid-like ordering. Monte Carlo simulations attribute this structure to the nonuniform intramolecular segmental mass distribution, which results in core-shell topology. This ordering is also reflected in their linear viscoelastic response as a new structural mode at low frequencies, due to cooperative rearrangements of the stars.

Original languageEnglish (US)
Pages (from-to)617-622
Number of pages6
JournalEurophysics Letters
Volume39
Issue number6
DOIs
StatePublished - Sep 15 1997
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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