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JOURNALS // Nanosystems: Physics, Chemistry, Mathematics // Archive

Nanosystems: Physics, Chemistry, Mathematics, 2016 Volume 7, Issue 1, Pages 118–124 (Mi nano179)

This article is cited in 4 papers

PAPERS, PRESENTED AT THE CONFERENCE

$\mathrm{C}_{60}$ fullerene-containing polymer stars in mixed matrix membranes

L. V. Vinogradovaa, A. Yu. Pulyalinab, V. A. Rostovtsevab, A. M. Toikkab, G. A. Polotskayaab

a Institute of Macromolecular Compounds RAS, Saint Petersburg, Russia
b Saint Petersburg State University, Institute of Chemistry, Saint Petersburg, Russia

Abstract: Star-shaped macromolecules with $\mathrm{C}_{60}$ fullerene branching centers were used as modifiers of poly($2.6$-dimethyl-$1.4$-phenylene oxide) matrix to obtain mixed matrix membranes. Two types of star modifiers were synthesized i) six-arms star with six polystyrene arms grafted onto $\mathrm{C}_{60}$ center and ii) twelve-arms hybrid star with six polystyrene arms and six copolymer poly($2$-vinylpyridine)-block-poly(tert-butylmethacrylate) arms grafted onto $\mathrm{C}_{60}$ center. The membrane structures were studied by scanning electron microscopy. The transport properties of the membranes were determined by using sorption and pervaporation tests toward methanol and ethylene glycol over a wide concentration range. All membranes showed high affinity for methanol. The separation factor reached its maximum level at 5 wt% modifier concentration in the membrane. Polar hybrid arms were shown to change the membranes’ morphologies and considerably improve their transport properties.

Keywords: applications of carbon nanostructures, fullerenes, star-shaped polymers, mixed matrix membrane, pervaporation.

PACS: 81.05.ub

Received: 20.11.2015

Language: English

DOI: 10.17586/2220-8054-2016-7-1-118-124



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