Composite Membranes Based on the Poly(1-trimethylsylyl-1-propine): Influence of the Porous Aromatic Frameworks Produced from the Friedel-Crafts Reaction and Introduced into the Polymer Matrix

被引：6
作者：
Bakhtin, D. S. [1 ]
Kulikov, L. A. [1 ,2 ]
Maksimov, A. L. [1 ,2 ]
Volkov, A. V. [1 ]
机构：
[1] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia
[2] Lomonosov Moscow State Univ, Moscow 119991, Russia
来源：
RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2020年 / 93卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
porous aromatic frameworks; PTMSP; physical aging; gas separation; composite membranes; GAS-TRANSPORT PROPERTIES; GLASSY-POLYMERS; PTMSP; THIN; STABILIZATION; SEPARATION;
D O I：
10.1134/S1070427220020147
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The effect of particles of porous aromatic frameworks, synthesized by the Friedel-Crafts reaction (PAF-FC), introduced into matrix of glassy polymer poly(1-trimethylsilyl-1-propine) (PTMSP), on the stabilization of the transport characteristics of composite membranes with a thin selective layer (2.0-2.2 Mm) was studied. As a comparison, samples of composite membranes with a selective layer based on PTMSP and PTMSP filled with PAF-11 particles synthesized by the Suzuki reaction are considered. All samples of composite membranes showed a decrease in the absolute values of gas permeability for all gases over time due to relaxation of the nonequilibrium free volume of PTMSP, therewith the greatest decrease is observed during the first thousand hours since membrane creation. The stabilization of the transport characteristics of composite membranes with PTMSP/PAF-FC occurs after 5000 h since membrane creation, further the carbon dioxide performance remains at the level of 8-9 m(3) m(-2) h(-1) atm(-1) for 9200 h. Similar performance values for aged composite membranes based on PTMSP and PTMSP/PAF-11 were about 1.5 m(3) m(-2)h(-1) atm(-1).
引用
收藏
页码：252 / 257
页数：6
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