Stabilization of Gas Transport Properties of Composite Membranes with a Thin PTMSP Selective Layer by Adding Porous Aromatic Framework Nanoparticles and Simultaneous Polymer Crosslinking

被引：8
作者：
Bakhtin, D. S. [1 ]
Kulikov, L. A. [2 ]
Bondarenko, G. N. [1 ]
Vasilevskii, V. P. [1 ]
Maksimov, A. L. [1 ,2 ]
Volkov, A. V. [1 ]
机构：
[1] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia
来源：
PETROLEUM CHEMISTRY | 2018年 / 58卷 / 09期
关键词：
PTMSP; PAF-11; physical aging; thin-film composite membranes; gas separation; MIXED-MATRIX MEMBRANES; NANOCOMPOSITE MEMBRANES; SEPARATION MEMBRANES; CO2; CAPTURE; PERFORMANCE; ADDITIVES; FILMS;
D O I：
10.1134/S0965544118090037
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Composite membranes with a thin selective layer based on poly[1-trimethylsilyl-1-propyne] (PTMSP) and crosslinked PTMSP containing 10 wt % of nanoparticles of porous aromatic frameworks (PAF-11) have been synthesized and studied. Monitoring of changes in the gas transport characteristics of the membranes under ambient conditions for 7500 h has revealed that for all the samples, the transport characteristics abruptly decrease within the first 1000-2000 h; after that, the mass transfer constants gradually change over time. In the case of a composite membrane with the selective layer based on crosslinked PTMSP and PAF-11 nanoparticles, stable permeability values after 7000 h are 2.1, 3.5, and 12.9 m(3)/(m(2) h atm) for N-2, O-2, and CO2,respectively (at an ideal selectivity of alpha(O-2/N-2) = 1.6 and alpha(CO2/N-2) = 6.1); to date, this is the best published result for thin-film composite membranes based on highly permeable glassy polymers.
引用
收藏
页码：790 / 796
页数：7
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