LrgpV1, Main, Merge, bibRecord, 000359

Synthesis of Polyvinyltrimethylsilane-graft-poly(ethylene glycol) Copolymers and Properties of Gas-Separating Membranes Formed on Their Basis

Identifieur interne : 000359 ( Main/Merge ); précédent : 000358; suivant : 000360

Synthesis of Polyvinyltrimethylsilane-graft-poly(ethylene glycol) Copolymers and Properties of Gas-Separating Membranes Formed on Their Basis

Auteurs : Yu. V. Ivanova [Russie] ; G. A. Shandryuk [Russie] ; Denis Roizard [France] ; Danielle Barth [France] ; V. S. Khotimskiy [Russie]

Source :

Polymer Science Series B / Vysokomolekulyarnye Soedineniya, Ser. B. [ 1560-0904 ] ; 2014-05.

RBID : Hal:hal-01275615

Abstract

A method is developed for the synthesis of the graft copolymer polyvinyltrimethylsilane-graft-poly(ethylene glycol) via the interaction of a brominated polymer with the methyl ether of a low-molecular-mass poly(ethylene glycol). Graft copolymer samples containing up to 79 wt % poly(ethylene glycol) are synthesized through this method. The properties of the graft copolymers and blends formed on their basis with a specially synthesized low-molecular-mass PEG derivative with a terminal trimethylsilyl group are investigated. Physical blends are prepared in order to increase the content of ethylene oxide groups while the film-forming properties of the composite materials are preserved. As shown by structural studies, the graft copolymers are amorphous single-phase systems, while the related blends are two-phase disperse systems, in which one phase is enriched in polytrimethylvinylsilane and the other is enriched in PEG. Studies of the gas-transport behavior of the samples reveal that the introduction of PEG, in contrast to the nonselective initial polymer, results in the formation of PVTMS-based materials that are selective for CO2 in mixtures with H-2.

Url:

https://hal.univ-lorraine.fr/hal-01275615

DOI: 10.1134/S1560090414030087

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Le document en format XML

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<front><div type="abstract" xml:lang="en">A method is developed for the synthesis of the graft copolymer polyvinyltrimethylsilane-graft-poly(ethylene glycol) via the interaction of a brominated polymer with the methyl ether of a low-molecular-mass poly(ethylene glycol). Graft copolymer samples containing up to 79 wt % poly(ethylene glycol) are synthesized through this method. The properties of the graft copolymers and blends formed on their basis with a specially synthesized low-molecular-mass PEG derivative with a terminal trimethylsilyl group are investigated. Physical blends are prepared in order to increase the content of ethylene oxide groups while the film-forming properties of the composite materials are preserved. As shown by structural studies, the graft copolymers are amorphous single-phase systems, while the related blends are two-phase disperse systems, in which one phase is enriched in polytrimethylvinylsilane and the other is enriched in PEG. Studies of the gas-transport behavior of the samples reveal that the introduction of PEG, in contrast to the nonselective initial polymer, results in the formation of PVTMS-based materials that are selective for CO2 in mixtures with H-2.</div>
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Synthesis of Polyvinyltrimethylsilane-graft-poly(ethylene glycol) Copolymers and Properties of Gas-Separating Membranes Formed on Their Basis

Synthesis of Polyvinyltrimethylsilane-graft-poly(ethylene glycol) Copolymers and Properties of Gas-Separating Membranes Formed on Their Basis

Source :

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri