Neutron scattering studies of structure and self-assembly of star-shaped polymers with fullerene centres in solutions

Vasily Lebedev, Lyudmila Vinogradova, Gyula Török

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Protonated star-shaped polystyrenes with single and double fullerene C 60 core and the hybrid stars with pairs of polar and non-polar arms (tertbuthylmetacrylate, polystyrene) have been studied in deuterated toluene (20 °C) by small-angle neutron scattering at low and moderate polymer concentrations (c1 ∼ 1 g/dl, c2 ∼ 3-6 g/dl) to evaluate the peculiarities of fullerene centre action on polymers self-assembly in solutions. As we found, the cores composed of two fullerenes, linked via Si(CH3)2-bridge, induce stars' anisotropic interactions and association into chain-like structures (correlation radius ∼400-600 nm). Meanwhile, the single-core stars of polystyrene and hybrids organize globular clusters (size ∼ 103 nm) those geometry do not change significantly by polymer content variation.

Original languageEnglish
Pages (from-to)183-188
Number of pages6
JournalMacromolecular Symposia
Volume296
Issue number1
DOIs
Publication statusPublished - Oct 1 2010

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Keywords

  • neutron scattering
  • star polymers
  • structure

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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