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Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO(2) Nanostars
Mixed-matrix membranes based on amorphous and semi-crystalline polyimides with zirconium dioxide (ZrO(2)) nanostars were synthesized. Amorphous poly(4,4′-oxydiphenylenepyromellitimide) and semi-crystalline polyimide prepared from 1,4-bis(4-aminophenoxy)benzene and 4,4’-oxydiphthalic anhydride were u...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6431868/ https://www.ncbi.nlm.nih.gov/pubmed/30974679 http://dx.doi.org/10.3390/polym8110403 |
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author | Sokolova, Maria P. Smirnov, Michael A. Geydt, Pavel Bugrov, Alexander N. Ovaska, Sami-Seppo Lahderanta, Erkki Toikka, Alexander M. |
author_facet | Sokolova, Maria P. Smirnov, Michael A. Geydt, Pavel Bugrov, Alexander N. Ovaska, Sami-Seppo Lahderanta, Erkki Toikka, Alexander M. |
author_sort | Sokolova, Maria P. |
collection | PubMed |
description | Mixed-matrix membranes based on amorphous and semi-crystalline polyimides with zirconium dioxide (ZrO(2)) nanostars were synthesized. Amorphous poly(4,4′-oxydiphenylenepyromellitimide) and semi-crystalline polyimide prepared from 1,4-bis(4-aminophenoxy)benzene and 4,4’-oxydiphthalic anhydride were used. The effect of ZrO(2) nanostars on the structure and morphology of nanocomposite membranes was studied by wide-angle X-ray scattering, scanning electron microscopy, atomic force microscopy, and contact angle measurements. Thermal properties and stability were investigated by thermogravimetric analysis and differential scanning calorimetry. Transport properties of hybrid membranes containing 5 wt % ZrO(2) were tested for pervaporation of a mixture of butanol–water with 10 wt % H(2)O content. It was found that a significant amount of the ZrO(2) added to the semi-crystalline polyimide is encapsulated inside spherulites. Therefore, the beneficial influence of inorganic filler on the selectivity of mixed-matrix membrane with respect to water was hampered. Mixed-matrix membranes based on amorphous polymer demonstrated the best performance, because water molecules had higher access to inorganic particles. |
format | Online Article Text |
id | pubmed-6431868 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64318682019-04-02 Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO(2) Nanostars Sokolova, Maria P. Smirnov, Michael A. Geydt, Pavel Bugrov, Alexander N. Ovaska, Sami-Seppo Lahderanta, Erkki Toikka, Alexander M. Polymers (Basel) Article Mixed-matrix membranes based on amorphous and semi-crystalline polyimides with zirconium dioxide (ZrO(2)) nanostars were synthesized. Amorphous poly(4,4′-oxydiphenylenepyromellitimide) and semi-crystalline polyimide prepared from 1,4-bis(4-aminophenoxy)benzene and 4,4’-oxydiphthalic anhydride were used. The effect of ZrO(2) nanostars on the structure and morphology of nanocomposite membranes was studied by wide-angle X-ray scattering, scanning electron microscopy, atomic force microscopy, and contact angle measurements. Thermal properties and stability were investigated by thermogravimetric analysis and differential scanning calorimetry. Transport properties of hybrid membranes containing 5 wt % ZrO(2) were tested for pervaporation of a mixture of butanol–water with 10 wt % H(2)O content. It was found that a significant amount of the ZrO(2) added to the semi-crystalline polyimide is encapsulated inside spherulites. Therefore, the beneficial influence of inorganic filler on the selectivity of mixed-matrix membrane with respect to water was hampered. Mixed-matrix membranes based on amorphous polymer demonstrated the best performance, because water molecules had higher access to inorganic particles. MDPI 2016-11-18 /pmc/articles/PMC6431868/ /pubmed/30974679 http://dx.doi.org/10.3390/polym8110403 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Sokolova, Maria P. Smirnov, Michael A. Geydt, Pavel Bugrov, Alexander N. Ovaska, Sami-Seppo Lahderanta, Erkki Toikka, Alexander M. Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO(2) Nanostars |
title | Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO(2) Nanostars |
title_full | Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO(2) Nanostars |
title_fullStr | Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO(2) Nanostars |
title_full_unstemmed | Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO(2) Nanostars |
title_short | Structure and Transport Properties of Mixed-Matrix Membranes Based on Polyimides with ZrO(2) Nanostars |
title_sort | structure and transport properties of mixed-matrix membranes based on polyimides with zro(2) nanostars |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6431868/ https://www.ncbi.nlm.nih.gov/pubmed/30974679 http://dx.doi.org/10.3390/polym8110403 |
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