The Effect of Microporous Polymeric Support Modification on Surface and Gas Transport Properties of Supported Ionic Liquid Membranes

Membranes

Evgeny N. Razov¹  Ekaterina S. Grebenschikova²  Ilnaz I. Zaripov³  Luísa A. Neves⁴  Carla F. Martins⁴  Anton N. Petukhov⁵  Ilsiya M. Davletbaeva⁵  Tatyana S. Sazanova⁵  Ilya V. Vorotyntsev⁵  Artem A. Atlaskin⁵  Alsu A. Akhmetshina⁵ 

[1] Institute for Problems in Mechanical Engineering, Russian Academy of Sciences, 85 Belinskogo str., Nizhny Novgorod 603024, Russia;Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Russia;Kazan National Research Technological University, 68 Karl Marks str, Kazan 420015, Russia;LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal;Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 24 Minina str., Nizhny Novgorod 603950, Russia;

关键词: microporous polymers;    modification;    ionic liquid;    supported liquid membrane;    SILMs;    gas separation;   

DOI  :  10.3390/membranes6010004

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown