Structure and supramolecular structures of star-shaped fullerene-containing heteroarm polymers in deuterotoluene

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

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Self-organization of star-shaped polymers containing six PS arms and six polar polymer arms on a common C60 branching center is studied by means of small-angle neutron scattering in deuterotoluene. The results are compared with the corresponding characteristics of six-arm star-shaped fullerene-containing PSs. It is shown that the incorporation of additional polar arms into a six-arm macromolecule leads to its compression due to an increase in the degree of coiling of polar chains in the nonpolar solvent. In solution, heteroarm stars give rise to supramolecular structures in the form of clusters whose dimensions and density depend on the nature of the polar arms. Stars containing PS and poly(2-vinylpyridine) arms are weakly asso-ciated, and the mean number of particles in an associate is 1.3. Hybrid polymers containing PS and poly(tert-butyl methacrylate) arms demonstrate capability for mutual penetration that favors the appearance of large structures that have a diameter of 50 nm and that include up to 12 macromolecules. Hybrid stars containing PS and diblock copolymer (poly(2-vinylpyridine)-poly(tert-butyl methacrylate)) arms exhibit moderate self-organization that manifests itself in the formation of chain associates built from four macro-molecules.

Original languageEnglish
Pages (from-to)12-23
Number of pages12
JournalPolymer Science - Series A
Volume53
Issue number1
DOIs
Publication statusPublished - Jan 2011

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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