|
Эта публикация цитируется в 4 научных статьях (всего в 4 статьях)
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
Аннотация:
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.
Ключевые слова:
applications of carbon nanostructures, fullerenes, star-shaped polymers, mixed matrix membrane, pervaporation.
Поступила в редакцию: 20.11.2015
Образец цитирования:
L. V. Vinogradova, A. Yu. Pulyalina, V. A. Rostovtseva, A. M. Toikka, G. A. Polotskaya, “$\mathrm{C}_{60}$ fullerene-containing polymer stars in mixed matrix membranes”, Наносистемы: физика, химия, математика, 7:1 (2016), 118–124
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/nano179 https://www.mathnet.ru/rus/nano/v7/i1/p118
|
Статистика просмотров: |
Страница аннотации: | 31 | PDF полного текста: | 11 |
|