Macrochain configuration, stucture of free volume and transport properties of poly(1-trimethylsilyl-1-propyne) and poly(1-trimethylgermyl-1-propyne)

Handle URI:
http://hdl.handle.net/10754/562266
Title:
Macrochain configuration, stucture of free volume and transport properties of poly(1-trimethylsilyl-1-propyne) and poly(1-trimethylgermyl-1-propyne)
Authors:
Matson, Samira M.; Rätzke, Klaus; Shaikh, Muhammad Qasim; Litvinova, Elena G.; Shishatskiy, Sergey M.; Peinemann, Klaus-Viktor ( 0000-0003-0309-9598 ) ; Khotimskiy, Valeriy S.
Abstract:
The relationship between poly(1-trimethylsilyl-1-propyne) (PTMSP) and poly(1-trimethylger- myl-1-propyne) (PTMGP) microstructure, gas permeability and structure of free volume is reported. n-Butane/methane mixed-gas permeation properties of PTMSP and PTMGP membranes with different cis-/trans-composition have been investigated. The n-butane/methane selectivities for mixed gas are by an order higher than the selectivities calculated from pure gas measurements (the mixed-gas n-butane/methane selectivities are 20-40 for PTMSP and 22-35 for PTMGP). Gas permeability and n-butane/methane selec- tivity essentially differ in polymers with different cis-/trans-composition. Positron annihilation lifetime spec- troscopy investigation of PTMSP and PTMGP with different microstructure has determined distinctions in total amount and structure of free volume, i.e. distribution of free volume elements. The correlation between total amount of free volume and gas transport parameters is established: PTMSP and PTMGP with bigger free volume exhibit higher n-butane permeability and mixed-gas n-butane/methane selectivity. Such behav- ior is discussed in relation to the submolecular structure of polymers with different microstructure and sorp- tion of n-butane in polymers with different free volume. © Pleiades Publishing, Ltd., 2012.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program
Publisher:
Pleiades Publishing Ltd
Journal:
Polymer Science Series A
Issue Date:
Aug-2012
DOI:
10.1134/S0965545X1207005X
Type:
Article
ISSN:
0965545X
Sponsors:
Partial funding for this research was provided by the European Commission (Project COMPOSE, Project Number NMP3-CT-2003-505633) and the Russian Foundation for Basic Research (project 11-03-00343).
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorMatson, Samira M.en
dc.contributor.authorRätzke, Klausen
dc.contributor.authorShaikh, Muhammad Qasimen
dc.contributor.authorLitvinova, Elena G.en
dc.contributor.authorShishatskiy, Sergey M.en
dc.contributor.authorPeinemann, Klaus-Viktoren
dc.contributor.authorKhotimskiy, Valeriy S.en
dc.date.accessioned2015-08-03T09:58:39Zen
dc.date.available2015-08-03T09:58:39Zen
dc.date.issued2012-08en
dc.identifier.issn0965545Xen
dc.identifier.doi10.1134/S0965545X1207005Xen
dc.identifier.urihttp://hdl.handle.net/10754/562266en
dc.description.abstractThe relationship between poly(1-trimethylsilyl-1-propyne) (PTMSP) and poly(1-trimethylger- myl-1-propyne) (PTMGP) microstructure, gas permeability and structure of free volume is reported. n-Butane/methane mixed-gas permeation properties of PTMSP and PTMGP membranes with different cis-/trans-composition have been investigated. The n-butane/methane selectivities for mixed gas are by an order higher than the selectivities calculated from pure gas measurements (the mixed-gas n-butane/methane selectivities are 20-40 for PTMSP and 22-35 for PTMGP). Gas permeability and n-butane/methane selec- tivity essentially differ in polymers with different cis-/trans-composition. Positron annihilation lifetime spec- troscopy investigation of PTMSP and PTMGP with different microstructure has determined distinctions in total amount and structure of free volume, i.e. distribution of free volume elements. The correlation between total amount of free volume and gas transport parameters is established: PTMSP and PTMGP with bigger free volume exhibit higher n-butane permeability and mixed-gas n-butane/methane selectivity. Such behav- ior is discussed in relation to the submolecular structure of polymers with different microstructure and sorp- tion of n-butane in polymers with different free volume. © Pleiades Publishing, Ltd., 2012.en
dc.description.sponsorshipPartial funding for this research was provided by the European Commission (Project COMPOSE, Project Number NMP3-CT-2003-505633) and the Russian Foundation for Basic Research (project 11-03-00343).en
dc.publisherPleiades Publishing Ltden
dc.titleMacrochain configuration, stucture of free volume and transport properties of poly(1-trimethylsilyl-1-propyne) and poly(1-trimethylgermyl-1-propyne)en
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical and Biological Engineering Programen
dc.identifier.journalPolymer Science Series Aen
dc.contributor.institutionA.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky prospect 29, Moscow, 119991, Russian Federationen
dc.contributor.institutionTechnical Faculty, University of Kiel, Kaiserstraße 2, Kiel, 24143, Germanyen
dc.contributor.institutionInstitute of Polymer Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Str. 1, Geesthacht, 21502, Germanyen
kaust.authorPeinemann, Klaus-Viktoren
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