Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation
Hybrid membranes based on poly (2,6-dimethyl-1,4-phenylene oxide) modified with heteroarm stars (HAS) were developed to separate ethylene glycol/water mixtures by pervaporation. The HAS consist of a small branching center fullerene C 60 and twelve arms of different nature, six arms of nonpolar polys...
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| Format: | Article |
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MDPI AG
2020-04-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/10/5/86 |
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| author | Valeriia Rostovtseva Alexandra Pulyalina Daria Rudakova Ludmila Vinogradova Galina Polotskaya |
| author_facet | Valeriia Rostovtseva Alexandra Pulyalina Daria Rudakova Ludmila Vinogradova Galina Polotskaya |
| author_sort | Valeriia Rostovtseva |
| collection | DOAJ |
| description | Hybrid membranes based on poly (2,6-dimethyl-1,4-phenylene oxide) modified with heteroarm stars (HAS) were developed to separate ethylene glycol/water mixtures by pervaporation. The HAS consist of a small branching center fullerene C 60 and twelve arms of different nature, six arms of nonpolar polystyrene and six arms of polar poly-tert-butyl methacrylate. The changes of structure and physical properties with HAS inclusion were systematically studied using SEM, X-ray diffraction analysis, TGA, and contact angle measurements. Mass transfer of ethylene glycol and water through membranes was studied by sorption and pervaporation tests. It was found that the growth of HAS content up to 5 wt% in the membrane leads to an increase in the total flux and a strong increase in the separation factor. To evaluate intrinsic properties of the penetrant–membrane system, permeability and selectivity were calculated. Overall, utilizing star-shaped macromolecules as a filler can be a promising way to improve the separation performance of diffusion membranes. |
| first_indexed | 2024-03-10T20:08:08Z |
| format | Article |
| id | doaj.art-16f82c2870b44b0eb9df6e88718c6352 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T20:08:08Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-16f82c2870b44b0eb9df6e88718c63522023-11-19T23:05:15ZengMDPI AGMembranes2077-03752020-04-011058610.3390/membranes10050086Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by PervaporationValeriia Rostovtseva0Alexandra Pulyalina1Daria Rudakova2Ludmila Vinogradova3Galina Polotskaya4Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Saint Petersburg 198504, RussiaInstitute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Saint Petersburg 198504, RussiaInstitute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Saint Petersburg 198504, RussiaInstitute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, RussiaInstitute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Saint Petersburg 198504, RussiaHybrid membranes based on poly (2,6-dimethyl-1,4-phenylene oxide) modified with heteroarm stars (HAS) were developed to separate ethylene glycol/water mixtures by pervaporation. The HAS consist of a small branching center fullerene C 60 and twelve arms of different nature, six arms of nonpolar polystyrene and six arms of polar poly-tert-butyl methacrylate. The changes of structure and physical properties with HAS inclusion were systematically studied using SEM, X-ray diffraction analysis, TGA, and contact angle measurements. Mass transfer of ethylene glycol and water through membranes was studied by sorption and pervaporation tests. It was found that the growth of HAS content up to 5 wt% in the membrane leads to an increase in the total flux and a strong increase in the separation factor. To evaluate intrinsic properties of the penetrant–membrane system, permeability and selectivity were calculated. Overall, utilizing star-shaped macromolecules as a filler can be a promising way to improve the separation performance of diffusion membranes.https://www.mdpi.com/2077-0375/10/5/86pervaporationethylene glycolpoly(phenylene oxide)star-shaped macromolecules |
| spellingShingle | Valeriia Rostovtseva Alexandra Pulyalina Daria Rudakova Ludmila Vinogradova Galina Polotskaya Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation Membranes pervaporation ethylene glycol poly(phenylene oxide) star-shaped macromolecules |
| title | Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation |
| title_full | Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation |
| title_fullStr | Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation |
| title_full_unstemmed | Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation |
| title_short | Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation |
| title_sort | strongly selective polymer membranes modified with heteroarm stars for the ethylene glycol dehydration by pervaporation |
| topic | pervaporation ethylene glycol poly(phenylene oxide) star-shaped macromolecules |
| url | https://www.mdpi.com/2077-0375/10/5/86 |
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