Ultrathin Sicopion Composite Cation-Exchange Membranes: Characteristics and Electrodialytic Performance following a Conditioning Procedure
The aim of this work was to investigate the properties of Sicopion membranes: an ultrathin (≈20 μm) composite cation-exchange membrane (CEM) made from sulphonated poly(ether-ether-ketone) (SPEEK) containing different levels of sulphonic-functionalized silica particles (SFSPs). Sicopion membranes we...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/932723 |
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| author | Erik Ayala-Bribiesca Mario Boucher Laurent Bazinet |
| author_facet | Erik Ayala-Bribiesca Mario Boucher Laurent Bazinet |
| author_sort | Erik Ayala-Bribiesca |
| collection | DOAJ |
| description | The aim of this work was to investigate the properties of Sicopion membranes: an ultrathin (≈20 μm) composite cation-exchange membrane (CEM) made from sulphonated poly(ether-ether-ketone) (SPEEK) containing different levels of sulphonic-functionalized silica particles (SFSPs). Sicopion membranes were conditioned according to the French Normalization Association procedure, consisting in a series of acid and alkaline washes, and their electrodialytic characteristics were compared to an existent commercial food-grade membrane (CMX-SB). Electrical conductivity of Sicopion membranes was higher than that of CMX-SB membranes (9.92 versus 6.98 mS/cm), as well as their water content (34.0 versus 27.6%). As the SFSP level was reduced, the ion-exchange capacity (IEC) of Sicopion membranes increased. Concerning their electrodialytic performances, Sicopion membranes presented a lower demineralization rate than CMX-SB membranes (35.9 versus 45.5%), due to an OH− leakage through the pores created by dislodging the SFSP particles during the conditioning procedure. |
| format | Article |
| id | doaj-art-042efb667c5b4d81933f6c157ef29b2d |
| institution | Kabale University |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-042efb667c5b4d81933f6c157ef29b2d2025-02-03T05:47:27ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782012-01-01201210.1155/2012/932723932723Ultrathin Sicopion Composite Cation-Exchange Membranes: Characteristics and Electrodialytic Performance following a Conditioning ProcedureErik Ayala-Bribiesca0Mario Boucher1Laurent Bazinet2Dairy Science and Technology Group (STELA), Institute of Nutraceuticals and Functional Foods (INAF) and Department of Food Sciences and Nutrition, Pavillon Paul Comtois, Laval University, Sainte-Foy, QC, G1V 0A6, CanadaSiM Composites, 4925 Rue Lionel Groulx, Bureau 11, Saint-Augustin-de-Desmaures, QC, G3A 1V1, CanadaDairy Science and Technology Group (STELA), Institute of Nutraceuticals and Functional Foods (INAF) and Department of Food Sciences and Nutrition, Pavillon Paul Comtois, Laval University, Sainte-Foy, QC, G1V 0A6, CanadaThe aim of this work was to investigate the properties of Sicopion membranes: an ultrathin (≈20 μm) composite cation-exchange membrane (CEM) made from sulphonated poly(ether-ether-ketone) (SPEEK) containing different levels of sulphonic-functionalized silica particles (SFSPs). Sicopion membranes were conditioned according to the French Normalization Association procedure, consisting in a series of acid and alkaline washes, and their electrodialytic characteristics were compared to an existent commercial food-grade membrane (CMX-SB). Electrical conductivity of Sicopion membranes was higher than that of CMX-SB membranes (9.92 versus 6.98 mS/cm), as well as their water content (34.0 versus 27.6%). As the SFSP level was reduced, the ion-exchange capacity (IEC) of Sicopion membranes increased. Concerning their electrodialytic performances, Sicopion membranes presented a lower demineralization rate than CMX-SB membranes (35.9 versus 45.5%), due to an OH− leakage through the pores created by dislodging the SFSP particles during the conditioning procedure.http://dx.doi.org/10.1155/2012/932723 |
| spellingShingle | Erik Ayala-Bribiesca Mario Boucher Laurent Bazinet Ultrathin Sicopion Composite Cation-Exchange Membranes: Characteristics and Electrodialytic Performance following a Conditioning Procedure International Journal of Chemical Engineering |
| title | Ultrathin Sicopion Composite Cation-Exchange Membranes: Characteristics and Electrodialytic Performance following a Conditioning Procedure |
| title_full | Ultrathin Sicopion Composite Cation-Exchange Membranes: Characteristics and Electrodialytic Performance following a Conditioning Procedure |
| title_fullStr | Ultrathin Sicopion Composite Cation-Exchange Membranes: Characteristics and Electrodialytic Performance following a Conditioning Procedure |
| title_full_unstemmed | Ultrathin Sicopion Composite Cation-Exchange Membranes: Characteristics and Electrodialytic Performance following a Conditioning Procedure |
| title_short | Ultrathin Sicopion Composite Cation-Exchange Membranes: Characteristics and Electrodialytic Performance following a Conditioning Procedure |
| title_sort | ultrathin sicopion composite cation exchange membranes characteristics and electrodialytic performance following a conditioning procedure |
| url | http://dx.doi.org/10.1155/2012/932723 |
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