Hybrid macromolecular stars with fullerene(C60) core included in polyphenyleneisophthalamide membranes for n-butanol dehydration

Alexandra Pulyalina, Alyona Larkina, Maksim Tataurov, Ludmila Vinogradova, Galina Polotskaya

Research output

1 Citation (Scopus)

Abstract

The problem of n-butanol ‒ water separation arises from the widespread interest to the search for alternative energy sources. To solve the problem by membrane technique, pervaporation membranes were developed on the basis of polyphenyleneisophthalamide modified with hybrid star macromolecules containing six arms of polystyrene and six arms of poly-tert-butyl methacrylate on the fullerene (C60) core. The structure was studied by scanning electron microscopy that reveal a tendency to form domains in the membranes modified by star macromolecules. Modification of the membrane by star fullerene (C60)-containing macromolecules led to a sharp increase in the selectivity and permeability of the membrane. Transport properties of novel membranes were studied in pervaporation of n-butanol‒water mixtures to separate n-butanol from water admixture for further use of this alcohol as industrial solvent and biofuel. It was found that introduction up to 5 wt% star modifier increases the separation efficiency of membranes in dehydration of n-butanol (water content in the permeate reaches 99.9 wt% while pervaporation separation index comes up to 400 kg/m2h), which allows obtaining high-purity n-butanol.

Original languageEnglish
Pages (from-to)54-60
JournalFullerenes Nanotubes and Carbon Nanostructures
Volume28
Issue number1
Early online date4 Oct 2019
DOIs
Publication statusPublished - 2 Jan 2020
Event14th International Conference "Advanced Carbon Nanostructures 2019" (ACNS’2019) - Санкт-Петербург
Duration: 1 Jul 20195 Jul 2019

Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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