Mechanisms of the self-organization of star-shaped polymers with a varied structure of branching center based on fullerene C 60 in solutions

V. T. Lebedev, G. Török, L. V. Vinogradova

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The self-organization of star-shaped polymers in toluene has been studied by small-angle neutron scattering. Polystyrene stars with a mono-C 60 branching center are ordered into globular clusters (∼1700 nm in diameter), whereas stars with a double (C 60-C 60) center are ordered into anisotropic structures (super-chains), which are linked (depending on the concentration) into triads (chain clusters ∼2500 nm in diameter). On the contrary, heteroarm polystyrene and poly-2-vinylpyridine stars with a C 60 center are weakly associated into dimers. Moderately polar stars with arms composed of polystyrene and diblock copolymer (poly-2-vinylpyridine- poly-tret-butyl methacrylate) form short chains composed of four macromolecules, while stars of higher polarity based on polystyrene and poly-tret-butyl methacrylate form clusters containing ∼12 macromolecules ∼50 nm in diameter. Thus, by varying the structure of the center and the arm polarity, one can control the modes of star structuring.

Original languageEnglish
Pages (from-to)1118-1122
Number of pages5
JournalCrystallography Reports
Volume56
Issue number7
DOIs
Publication statusPublished - Dec 2011

Fingerprint

Fullerenes
fullerenes
Stars
Polymers
Polystyrenes
stars
polymers
polystyrene
Macromolecules
macromolecules
polarity
Toluene
Neutron scattering
globular clusters
Dimers
Block copolymers
toluene
copolymers
neutron scattering
dimers

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Mechanisms of the self-organization of star-shaped polymers with a varied structure of branching center based on fullerene C 60 in solutions. / Lebedev, V. T.; Török, G.; Vinogradova, L. V.

In: Crystallography Reports, Vol. 56, No. 7, 12.2011, p. 1118-1122.

Research output: Contribution to journalArticle

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