Effect of the fullerene C60 on the structure of asymmetric microporous membranes based on polyamidoimide

Yu V. Kulvelis, V. T. Lebedev, S. V. Kononova, Gy Török

Research output: Contribution to journalArticle

Abstract

Small-angle neutron scattering is applied to study film-gradient membranes of polyamidoimide and similar membranes, modified by the addition of a fullerene C60 (2 wt %) during phase-inverted sedimentation of the polymer solution. It is demonstrated that membranes without a fullerene have a system of nanoscale pores filling ∼20% of the bulk polymer and having a correlation radius of RC ≈ 20 nm. However, the introduction of a fullerene leads to a decrease in the pore size to RC ≈ 15 nm, and their volume fraction decreases by ∼40%. In this regard, we discuss the role of fullerenes inclined to the creation of molecular complexes by linking chains, which is important for regulation of the molecular pore structure of membranes.

Original languageEnglish
Pages (from-to)6-11
Number of pages6
JournalJournal of Surface Investigation
Volume9
Issue number1
DOIs
Publication statusPublished - Jan 1 2015

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Keywords

  • fullerene
  • gradient membranes
  • polyamideimide
  • small-angle neutron scattering

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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