Gas‐transport properties of novel composites based on addition poly(3‐trimethylsilyltricyclononene‐7) and substituted cyclodextrines

P.P. Chapala; M.V. Bermeshev; L.E. Starannikova; V.P. Shantarovich; N.N. Gavrilova; Yu.P. Yampolskii; E.Sh. Finkelshtein

doi:10.1002/pc.23432

journal article Apr 05, 2015

Gas‐transport properties of novel composites based on addition poly(3‐trimethylsilyltricyclononene‐7) and substituted cyclodextrines

P.P. Chapala M.V. Bermeshev L.E. Starannikova V.P. Shantarovich N.N. Gavrilova Yu.P. Yampolskii E.Sh. Finkelshtein

Polymer Composites Vol. 36 No. 6 pp. 1029-1038 · Wiley

View at Publisher Save 10.1002/pc.23432

Abstract

In this work we report the preparation and properties of composite materials for gas separation membranes based on highly permeable addition poly(3‐trimethylsilyltricyclononene‐7) (PTCNSi1) as a matrix and substituted cyclodextrines (CD) as fillers. CD studied had different structure and this allowed us to explore correlations between the structure of the fillers and gas permeation parameters of the resulting compositions. Namely α‐, β‐, and γ‐cyclodextrines with Me‐ or Me3Si‐substituents were synthesized and the composites containing them were prepared. Permeability coefficients of the obtained composites were determined for He, H2, O2, N2, CO2, CH4. It was found that the introduction of cyclodextrines with bulky Me3Si‐groups rather weakly influenced the permeability coefficients for He and H2, while for other gases a marked decrease in permeability was observed. On the other hand, in the case of the composites containing Me‐substituted CD decreases in permeability were observed for all the studied gases. The changes of gas permeability dramatically depend on the size of gas molecules and this results in an increase in selectivities for some gas pairs. Thus, introduction of α‐CD with Me‐groups resulted in an increase in selectivity α(H2/N2) from 5.2 for pure polymer to 9.1. The increase in CD content in a composite gave an extra growth of selectivities. BET, TEM, WAXD, positron annihilation data (free volume) and mechanical properties of the composites were also studied and discussed. POLYM. COMPOS., 36:1029–1038, 2015. © 2015 Society of Plastics Engineers

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References

Details

Published: Apr 05, 2015
Vol/Issue: 36(6)
Pages: 1029-1038
License: View

Authors

P

P.P. Chapala

A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy pr. 119991 Moscow Russia

M

M.V. Bermeshev

A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy pr. 119991 Moscow Russia

L

L.E. Starannikova

A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy pr. 119991 Moscow Russia

V

V.P. Shantarovich

N. N. Semenov Institute of Chemical Physics RAS, 4 Kosygina ul. 119334 Moscow Russia

N

N.N. Gavrilova

D.I. Mendeleyev University of Chemical Technology of Russia 9 Miusskaya sq. 125047 Moscow Russia

Y

Yu.P. Yampolskii

A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy pr. 119991 Moscow Russia

E

E.Sh. Finkelshtein

A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninskiy pr. 119991 Moscow Russia

Funding

9P Program of RAS Presidium, and the Ministry of Education and Science of the Russian Federation Award: GK No.14.120.14.1103-МК

Cite This Article

P.P. Chapala, M.V. Bermeshev, L.E. Starannikova, et al. (2015). Gas‐transport properties of novel composites based on addition poly(3‐trimethylsilyltricyclononene‐7) and substituted cyclodextrines. Polymer Composites, 36(6), 1029-1038. https://doi.org/10.1002/pc.23432

Gas‐transport properties of novel composites based on addition poly(3‐trimethylsilyltricyclononene‐7) and substituted cyclodextrines

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