C60 fullerene-containing polymer stars in mixed matrix membranes
https://doi.org/10.17586/2220-8054-2016-7-1-118-124
Abstract
Star-shaped macromolecules with C60 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 C60 center and ii) twelve-arms hybrid star with six polystyrene arms and six copolymer poly(2-vinylpyridine)-block-poly(tert-butylmethacrylate) arms grafted onto C60 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
Supporting agencies: G.A. Polotskaya acknowledges the Russian Foundation for Basic Research (project 15-03-02131). A.M. Toikka acknowledges Saint Petersburg State University (research grant 12.38.257.2014). The work was also supported by Fellowship of the President of Russian Federation (project No. 184, SP-1469.2015.1).
About the Authors
L. V. Vinogradova
Institute of Macromolecular Compounds RAS
Russian Federation
Russian Federation
Saint Petersburg
A. Yu. Pulyalina
Saint Petersburg State University, Institute of Chemistry
Russian Federation
Russian Federation
Saint Petersburg
V. A. Rostovtseva
Saint Petersburg State University, Institute of Chemistry
Russian Federation
Russian Federation
Saint Petersburg
A. M. Toikka
Saint Petersburg State University, Institute of Chemistry
Russian Federation
Russian Federation
Saint Petersburg
G. A. Polotskaya
Institute of Macromolecular Compounds RAS; Saint Petersburg State University, Institute of Chemistry
Russian Federation
Russian Federation
Saint Petersburg
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Review
For citations:
Vinogradova L.V., Pulyalina A.Yu., Rostovtseva V.A., Toikka A.M., Polotskaya G.A. C60 fullerene-containing polymer stars in mixed matrix membranes. Nanosystems: Physics, Chemistry, Mathematics. 2016;7(1):118-124. https://doi.org/10.17586/2220-8054-2016-7-1-118-124
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