TY - JOUR
T1 - The effect of microporous polymeric support modification on surface and gas transport properties of supported ionic liquid membranes
AU - Akhmetshina, Alsu A.
AU - Davletbaeva, Ilsiya M.
AU - Grebenschikova, Ekaterina S.
AU - Sazanova, Tatyana S.
AU - Petukhov, Anton N.
AU - Atlaskin, Artem A.
AU - Razov, Evgeny N.
AU - Zaripov, Ilnaz I.
AU - Martins, Carla F.
AU - Neves, Luísa A.
AU - Vorotyntsev, Ilya V.
N1 - This work was financially supported by the Russian Science Foundation, project 15-19-10057.
PY - 2015/12/30
Y1 - 2015/12/30
N2 - Microporous polymers based on anionic macroinitiator and toluene 2,4-diisocyanate were used as a support for 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([emim][Tf2N]) immobilization. The polymeric support was modified by using silica particles associated in oligomeric media, and the influence of the modifier used on the polymeric structure was studied. The supported ionic liquid membranes (SILMs) were tested for He, N2, NH3, H2S, and CO2 gas separation and ideal selectivities were calculated. The high values of ideal selectivity for ammonia-based systems with permanent gases were observed on polymer matrixes immobilized with [bmim][PF6] and [emim][Tf2N]. The modification of SILMs by nanosize silica particles leads to an increase of NH3 separation relatively to CO2 or H2S.
AB - Microporous polymers based on anionic macroinitiator and toluene 2,4-diisocyanate were used as a support for 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([emim][Tf2N]) immobilization. The polymeric support was modified by using silica particles associated in oligomeric media, and the influence of the modifier used on the polymeric structure was studied. The supported ionic liquid membranes (SILMs) were tested for He, N2, NH3, H2S, and CO2 gas separation and ideal selectivities were calculated. The high values of ideal selectivity for ammonia-based systems with permanent gases were observed on polymer matrixes immobilized with [bmim][PF6] and [emim][Tf2N]. The modification of SILMs by nanosize silica particles leads to an increase of NH3 separation relatively to CO2 or H2S.
KW - Gas separation
KW - Ionic liquid
KW - Microporous polymers
KW - Modification
KW - SILMs
KW - Supported liquid membrane
UR - http://www.scopus.com/inward/record.url?scp=84952815224&partnerID=8YFLogxK
U2 - 10.3390/membranes6010004
DO - 10.3390/membranes6010004
M3 - Article
AN - SCOPUS:84952815224
SN - 0076-6356
VL - 6
JO - Membranes
JF - Membranes
IS - 1
ER -