Nanofiltration properties of asymmetric membranes prepared by phase inversion of sulfonated nitro-polyphenylsulfone
This study is a systematic investigation of preparation and characteristics of membranes, made from sulfonated nitro-polyphenylsulfone (SPPS-NO2) with different degrees of sulfonation and prepared by non-solvent–induced phase separation in different immersion baths (deionized water, 0.1 M HCl, or 1 ...
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| Veröffentlicht in: | Polymer (Guilford) 2017-02, Vol.111, p.137-147 |
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| creator | Brami, Matan V. Oren, Yoram Linder, Charles Bernstein, Roy |
| description | This study is a systematic investigation of preparation and characteristics of membranes, made from sulfonated nitro-polyphenylsulfone (SPPS-NO2) with different degrees of sulfonation and prepared by non-solvent–induced phase separation in different immersion baths (deionized water, 0.1 M HCl, or 1 M NaCl).
Following nitration, the PPS-NO2 was sulfonated with different amounts of chlorosulfonic acid to achieve polymers with different ion exchange capacities (IECs), from 0 to 2.2 meq/g.
The cross-sectional membrane morphology changed from porous to dense following sulfonation as seen by scanning electron microscopy. The phase inversion of the polymer solution was studied using the cloud-point method, light microscopy, and Langmuir isotherm. It was found that the liquid-liquid demixing of the polymer solution changed due to the increase in the IEC. This was mainly attributed to an increase in polymer miscibility in the aqueous non-solvent bath with an increasing degree of sulfonation. In addition, the phase-inversion properties of the ionic polymers were influenced by changing the aqueous composition of the immersion baths, probably due to partial protonation of the ionic sulfonic groups (in the case of HCl as the non-solvent) or to solvation effect (when NaCl was the non-solvent).
Changing the morphology and of the membrane influenced its performance. Increasing the IEC increased the salt rejection and decreased flux. However, the permeability was improved without a large loss of selectivity by changing the non-solvent to aqueous NaCl. In addition, the new membrane showed high chlorine resistance due to the addition of a nitro group to the polymer backbone, and high acid resistance property.
[Display omitted]
•SPPS-NO2 with different sulfonation degree was synthesized.•SPPS-NO2 asymmetric membranes were fabricated using the NIPS method.•The non-solvent properties had an effect on the morphology the SPPS-NO2 membranes.•The salt rejection and permeability of the new membranes were influenced by the properties of the three non-solvents..•The new membrane had a high chlorine resistant and acid stability. |
| doi_str_mv | 10.1016/j.polymer.2017.01.048 |
| format | Article |
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Following nitration, the PPS-NO2 was sulfonated with different amounts of chlorosulfonic acid to achieve polymers with different ion exchange capacities (IECs), from 0 to 2.2 meq/g.
The cross-sectional membrane morphology changed from porous to dense following sulfonation as seen by scanning electron microscopy. The phase inversion of the polymer solution was studied using the cloud-point method, light microscopy, and Langmuir isotherm. It was found that the liquid-liquid demixing of the polymer solution changed due to the increase in the IEC. This was mainly attributed to an increase in polymer miscibility in the aqueous non-solvent bath with an increasing degree of sulfonation. In addition, the phase-inversion properties of the ionic polymers were influenced by changing the aqueous composition of the immersion baths, probably due to partial protonation of the ionic sulfonic groups (in the case of HCl as the non-solvent) or to solvation effect (when NaCl was the non-solvent).
Changing the morphology and of the membrane influenced its performance. Increasing the IEC increased the salt rejection and decreased flux. However, the permeability was improved without a large loss of selectivity by changing the non-solvent to aqueous NaCl. In addition, the new membrane showed high chlorine resistance due to the addition of a nitro group to the polymer backbone, and high acid resistance property.
[Display omitted]
•SPPS-NO2 with different sulfonation degree was synthesized.•SPPS-NO2 asymmetric membranes were fabricated using the NIPS method.•The non-solvent properties had an effect on the morphology the SPPS-NO2 membranes.•The salt rejection and permeability of the new membranes were influenced by the properties of the three non-solvents..•The new membrane had a high chlorine resistant and acid stability.</description><identifier>ISSN: 0032-3861</identifier><identifier>EISSN: 1873-2291</identifier><identifier>DOI: 10.1016/j.polymer.2017.01.048</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Acid resistance ; Addition polymerization ; Baths ; Chlorine ; Chlorine resistance nanofiltration membranes ; Deionization ; Demixing ; Electron microscopy ; Immersion ; Inversion ; Light microscopy ; Membranes ; Miscibility ; Morphology ; Nanofiltration ; Nanotechnology ; Nitration ; Nitro-sulfonated polyphenylsulfone ; Nitrogen dioxide ; Non-solvent induced phase inversion ; Permeability ; Phase inversion ; Phase separation ; Phase shift ; Polymers ; Protonation ; Salt rejection ; Salts ; Scanning electron microscopy ; Selectivity ; Sodium chloride ; Solvation ; Sulfonation</subject><ispartof>Polymer (Guilford), 2017-02, Vol.111, p.137-147</ispartof><rights>2017 Elsevier Ltd</rights><rights>Copyright Elsevier BV Feb 24, 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c374t-79f2c5f00bb20fe61b34fe6ab0e1b220a85880c4d80773602289294ac2d992cb3</citedby><cites>FETCH-LOGICAL-c374t-79f2c5f00bb20fe61b34fe6ab0e1b220a85880c4d80773602289294ac2d992cb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.polymer.2017.01.048$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Brami, Matan V.</creatorcontrib><creatorcontrib>Oren, Yoram</creatorcontrib><creatorcontrib>Linder, Charles</creatorcontrib><creatorcontrib>Bernstein, Roy</creatorcontrib><title>Nanofiltration properties of asymmetric membranes prepared by phase inversion of sulfonated nitro-polyphenylsulfone</title><title>Polymer (Guilford)</title><description>This study is a systematic investigation of preparation and characteristics of membranes, made from sulfonated nitro-polyphenylsulfone (SPPS-NO2) with different degrees of sulfonation and prepared by non-solvent–induced phase separation in different immersion baths (deionized water, 0.1 M HCl, or 1 M NaCl).
Following nitration, the PPS-NO2 was sulfonated with different amounts of chlorosulfonic acid to achieve polymers with different ion exchange capacities (IECs), from 0 to 2.2 meq/g.
The cross-sectional membrane morphology changed from porous to dense following sulfonation as seen by scanning electron microscopy. The phase inversion of the polymer solution was studied using the cloud-point method, light microscopy, and Langmuir isotherm. It was found that the liquid-liquid demixing of the polymer solution changed due to the increase in the IEC. This was mainly attributed to an increase in polymer miscibility in the aqueous non-solvent bath with an increasing degree of sulfonation. In addition, the phase-inversion properties of the ionic polymers were influenced by changing the aqueous composition of the immersion baths, probably due to partial protonation of the ionic sulfonic groups (in the case of HCl as the non-solvent) or to solvation effect (when NaCl was the non-solvent).
Changing the morphology and of the membrane influenced its performance. Increasing the IEC increased the salt rejection and decreased flux. However, the permeability was improved without a large loss of selectivity by changing the non-solvent to aqueous NaCl. In addition, the new membrane showed high chlorine resistance due to the addition of a nitro group to the polymer backbone, and high acid resistance property.
[Display omitted]
•SPPS-NO2 with different sulfonation degree was synthesized.•SPPS-NO2 asymmetric membranes were fabricated using the NIPS method.•The non-solvent properties had an effect on the morphology the SPPS-NO2 membranes.•The salt rejection and permeability of the new membranes were influenced by the properties of the three non-solvents..•The new membrane had a high chlorine resistant and acid stability.</description><subject>Acid resistance</subject><subject>Addition polymerization</subject><subject>Baths</subject><subject>Chlorine</subject><subject>Chlorine resistance nanofiltration membranes</subject><subject>Deionization</subject><subject>Demixing</subject><subject>Electron microscopy</subject><subject>Immersion</subject><subject>Inversion</subject><subject>Light microscopy</subject><subject>Membranes</subject><subject>Miscibility</subject><subject>Morphology</subject><subject>Nanofiltration</subject><subject>Nanotechnology</subject><subject>Nitration</subject><subject>Nitro-sulfonated polyphenylsulfone</subject><subject>Nitrogen dioxide</subject><subject>Non-solvent induced phase inversion</subject><subject>Permeability</subject><subject>Phase inversion</subject><subject>Phase separation</subject><subject>Phase shift</subject><subject>Polymers</subject><subject>Protonation</subject><subject>Salt rejection</subject><subject>Salts</subject><subject>Scanning electron microscopy</subject><subject>Selectivity</subject><subject>Sodium chloride</subject><subject>Solvation</subject><subject>Sulfonation</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFUE1LxDAQDaLguvoThILn1knabdOTyOIXLHrRc0jTKZulTWqSXei_N6V7dy4DM--9mfcIuaeQUaDl4yEbbT8N6DIGtMqAZlDwC7KivMpTxmp6SVYAOUtzXtJrcuP9AQDYhhUr4j-lsZ3ug5NBW5OMzo7ogkaf2C6RfhoGDE6rZMChcdLE-ehwlA7bpJmScS89Jtqc0PmZHjn-2HfWyBABRgdn0_m5cY9m6pcV3pKrTvYe7859TX5eX7637-nu6-1j-7xLVV4VIa3qjqlNB9A0DDosaZMXsckGkDaMgeQbzkEVLYeqyktgjNesLqRibV0z1eRr8rDoRlO_R_RBHOzRmXhS0LrgRcliRdRmQSlnvXfYidHpQbpJUBBzvuIgzvmKOV8BVMR8I-9p4WG0cNJx65VGo7DVDlUQrdX_KPwBzk6KCQ</recordid><startdate>20170224</startdate><enddate>20170224</enddate><creator>Brami, Matan V.</creator><creator>Oren, Yoram</creator><creator>Linder, Charles</creator><creator>Bernstein, Roy</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope></search><sort><creationdate>20170224</creationdate><title>Nanofiltration properties of asymmetric membranes prepared by phase inversion of sulfonated nitro-polyphenylsulfone</title><author>Brami, Matan V. ; Oren, Yoram ; Linder, Charles ; Bernstein, Roy</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c374t-79f2c5f00bb20fe61b34fe6ab0e1b220a85880c4d80773602289294ac2d992cb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Acid resistance</topic><topic>Addition polymerization</topic><topic>Baths</topic><topic>Chlorine</topic><topic>Chlorine resistance nanofiltration membranes</topic><topic>Deionization</topic><topic>Demixing</topic><topic>Electron microscopy</topic><topic>Immersion</topic><topic>Inversion</topic><topic>Light microscopy</topic><topic>Membranes</topic><topic>Miscibility</topic><topic>Morphology</topic><topic>Nanofiltration</topic><topic>Nanotechnology</topic><topic>Nitration</topic><topic>Nitro-sulfonated polyphenylsulfone</topic><topic>Nitrogen dioxide</topic><topic>Non-solvent induced phase inversion</topic><topic>Permeability</topic><topic>Phase inversion</topic><topic>Phase separation</topic><topic>Phase shift</topic><topic>Polymers</topic><topic>Protonation</topic><topic>Salt rejection</topic><topic>Salts</topic><topic>Scanning electron microscopy</topic><topic>Selectivity</topic><topic>Sodium chloride</topic><topic>Solvation</topic><topic>Sulfonation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Brami, Matan V.</creatorcontrib><creatorcontrib>Oren, Yoram</creatorcontrib><creatorcontrib>Linder, Charles</creatorcontrib><creatorcontrib>Bernstein, Roy</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Brami, Matan V.</au><au>Oren, Yoram</au><au>Linder, Charles</au><au>Bernstein, Roy</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nanofiltration properties of asymmetric membranes prepared by phase inversion of sulfonated nitro-polyphenylsulfone</atitle><jtitle>Polymer (Guilford)</jtitle><date>2017-02-24</date><risdate>2017</risdate><volume>111</volume><spage>137</spage><epage>147</epage><pages>137-147</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><abstract>This study is a systematic investigation of preparation and characteristics of membranes, made from sulfonated nitro-polyphenylsulfone (SPPS-NO2) with different degrees of sulfonation and prepared by non-solvent–induced phase separation in different immersion baths (deionized water, 0.1 M HCl, or 1 M NaCl).
Following nitration, the PPS-NO2 was sulfonated with different amounts of chlorosulfonic acid to achieve polymers with different ion exchange capacities (IECs), from 0 to 2.2 meq/g.
The cross-sectional membrane morphology changed from porous to dense following sulfonation as seen by scanning electron microscopy. The phase inversion of the polymer solution was studied using the cloud-point method, light microscopy, and Langmuir isotherm. It was found that the liquid-liquid demixing of the polymer solution changed due to the increase in the IEC. This was mainly attributed to an increase in polymer miscibility in the aqueous non-solvent bath with an increasing degree of sulfonation. In addition, the phase-inversion properties of the ionic polymers were influenced by changing the aqueous composition of the immersion baths, probably due to partial protonation of the ionic sulfonic groups (in the case of HCl as the non-solvent) or to solvation effect (when NaCl was the non-solvent).
Changing the morphology and of the membrane influenced its performance. Increasing the IEC increased the salt rejection and decreased flux. However, the permeability was improved without a large loss of selectivity by changing the non-solvent to aqueous NaCl. In addition, the new membrane showed high chlorine resistance due to the addition of a nitro group to the polymer backbone, and high acid resistance property.
[Display omitted]
•SPPS-NO2 with different sulfonation degree was synthesized.•SPPS-NO2 asymmetric membranes were fabricated using the NIPS method.•The non-solvent properties had an effect on the morphology the SPPS-NO2 membranes.•The salt rejection and permeability of the new membranes were influenced by the properties of the three non-solvents..•The new membrane had a high chlorine resistant and acid stability.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.polymer.2017.01.048</doi><tpages>11</tpages></addata></record> |
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| subjects | Acid resistance Addition polymerization Baths Chlorine Chlorine resistance nanofiltration membranes Deionization Demixing Electron microscopy Immersion Inversion Light microscopy Membranes Miscibility Morphology Nanofiltration Nanotechnology Nitration Nitro-sulfonated polyphenylsulfone Nitrogen dioxide Non-solvent induced phase inversion Permeability Phase inversion Phase separation Phase shift Polymers Protonation Salt rejection Salts Scanning electron microscopy Selectivity Sodium chloride Solvation Sulfonation |
| title | Nanofiltration properties of asymmetric membranes prepared by phase inversion of sulfonated nitro-polyphenylsulfone |
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