Transport properties of silmethylene homo-polymers and random copolymers: experimental measurements and molecular simulation

A novel class of silicon-containing rubbers is proposed as membrane materials for separation of hydrocarbons of natural and associated petroleum gas. Homo-polymers of general formulas –Si(CH 3) 2CH 2– (PDMSM) and –Si(CH 3) 2CH 2CH 2CH 2– (PDMSTM) and the copolymers with the same randomly alternating...

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Published in:Polymer (Guilford) 2004-09, Vol.45 (20), p.6933-6944
Main Authors: Alentiev, Alexander, Economou, Ioannis G., Finkelshtein, Eugene, Petrou, John, Raptis, Vasilios E., Sanopoulou, Merope, Soloviev, Sergei, Ushakov, Nikolai, Yampolskii, Yuri
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Language:English
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Gas permeability
Membrane separation of hydrocarbons
Silmethylene polymers and copolymers
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cited_by cdi_FETCH-LOGICAL-c400t-296a03a27b04f9f71214153514a4feaa8642cd6a969437fe9ee9739e8a78bfc83
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container_issue 20
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container_title Polymer (Guilford)
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creator Alentiev, Alexander
Economou, Ioannis G.
Finkelshtein, Eugene
Petrou, John
Raptis, Vasilios E.
Sanopoulou, Merope
Soloviev, Sergei
Ushakov, Nikolai
Yampolskii, Yuri
description A novel class of silicon-containing rubbers is proposed as membrane materials for separation of hydrocarbons of natural and associated petroleum gas. Homo-polymers of general formulas –Si(CH 3) 2CH 2– (PDMSM) and –Si(CH 3) 2CH 2CH 2CH 2– (PDMSTM) and the copolymers with the same randomly alternating repeat units were prepared by thermal initiated polymerization of strained silicon-containing four-member cycles. These polymers have low glass transition temperatures and reveal solubility controlled gas permeation properties. The highest permeability is characteristic for PDMSM, however, it has poor film forming properties. On the other hand, amorphous copolymers exhibit combination of good film forming properties and relatively high permeability. Transport properties of PDMSM were successfully simulated by molecular dynamics using a very efficient united-atom force field.
doi_str_mv 10.1016/j.polymer.2004.08.005
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1873-2291
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source ScienceDirect Freedom Collection
subjects Gas permeability
Membrane separation of hydrocarbons
Silmethylene polymers and copolymers
title Transport properties of silmethylene homo-polymers and random copolymers: experimental measurements and molecular simulation
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