Preparation and properties of pore-filling membranes based on sulfonated copolyimides and porous polyimide matrix
The porous polyimide films were prepared by a wet phase inversion process. The influence of coagulating non-solvent on morphology, pore size and porosity of porous films was investigated. A series of pore-filling sulfonated polyimide (PFSPI) membranes, which derived from a homogenous spongy-like por...
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| Veröffentlicht in: | Polymer (Guilford) 2012-07, Vol.53 (15), p.3154-3162 |
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| creator | Wang, Taipeng Sun, Fei Wang, Hejin Yang, Shiyong Fan, Lin |
| description | The porous polyimide films were prepared by a wet phase inversion process. The influence of coagulating non-solvent on morphology, pore size and porosity of porous films was investigated. A series of pore-filling sulfonated polyimide (PFSPI) membranes, which derived from a homogenous spongy-like porous polyimide film as matrix filled with sulfonated copolyimides, were prepared and characterized. These PFSPI membranes exhibited excellent thermal stability with desulfonation temperature of 283–330 °C and good oxidative stability in Fenton's agent due to the protective effect of porous polyimide matrix on the sulfonic acid groups. The swelling of PFSPI membranes could be effectively suppressed by the porous matrix, which leads to the excellent dimensional stability and good water stability of membranes. The PFSPI membranes exhibited high proton conductivity at elevated temperature. All the PFSPI membranes displayed better permselectivity as compared with Nafion 115, which is attributed to their much lower methanol permeability.
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| doi_str_mv | 10.1016/j.polymer.2012.05.049 |
| format | Article |
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[Display omitted]</description><subject>Applied sciences</subject><subject>dimensional stability</subject><subject>Exact sciences and technology</subject><subject>Exchange resins and membranes</subject><subject>Forms of application and semi-finished materials</subject><subject>High temperature</subject><subject>Membranes</subject><subject>methanol</subject><subject>Methyl alcohol</subject><subject>Morphology</subject><subject>oxidative stability</subject><subject>permeability</subject><subject>Phase shift</subject><subject>Polyimide resins</subject><subject>Polymer industry, paints, wood</subject><subject>polymers</subject><subject>Pore-filling membranes</subject><subject>Porosity</subject><subject>Protective</subject><subject>protective effect</subject><subject>Sulfonated polyimides</subject><subject>sulfonic acid</subject><subject>Technology of polymers</subject><subject>temperature</subject><subject>thermal stability</subject><subject>Water stability</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkU1r3DAQhkVpodukP6HUl0AvdvRh2dIphKX5gIUG2pyFLI-CFttyJG_o_vvOZpe99iSked6Zd14R8o3RilHWXG-rOQ77EVLFKeMVlRWt9QeyYqoVJeeafSQrSgUvhWrYZ_Il5y2llEter8jrU4LZJruEOBV26os5xRnSEiAX0RdzTFD6MAxheilGGLtkJ6x0NkNfoCLvBh8nu-DNxYOLMIYegfdOMcVdLs6vxWiXFP5ekk_eDhm-ns4L8nz388_6odz8un9c325KV4t2Ka0HxQC6Vmmqle90X1sNLYBUnQZhBe-glrUW4GjXtbJpegGtd4qxuvfOiwvy49gXN3rdQV7MGLKDYcAN0JdhVChBZS0EovKIuhRzTuDNnMJo0x4hc4jYbM0pYnOI2FBpMGLUXZ1G2Ozs4DEcF_JZzBvGlaQNct-PnLfR2JeEzPNvbCTxG7RWzcHBzZEATOQt4JzsAkwO-pDALaaP4T9e_gGvtKHK</recordid><startdate>20120706</startdate><enddate>20120706</enddate><creator>Wang, Taipeng</creator><creator>Sun, Fei</creator><creator>Wang, Hejin</creator><creator>Yang, Shiyong</creator><creator>Fan, Lin</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20120706</creationdate><title>Preparation and properties of pore-filling membranes based on sulfonated copolyimides and porous polyimide matrix</title><author>Wang, Taipeng ; Sun, Fei ; Wang, Hejin ; Yang, Shiyong ; Fan, Lin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c437t-afe81eeb789098fb9d4a9e7ee58b9e3a32be45493ec0bb7566d3e7fc8114dfcf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Applied sciences</topic><topic>dimensional stability</topic><topic>Exact sciences and technology</topic><topic>Exchange resins and membranes</topic><topic>Forms of application and semi-finished materials</topic><topic>High temperature</topic><topic>Membranes</topic><topic>methanol</topic><topic>Methyl alcohol</topic><topic>Morphology</topic><topic>oxidative stability</topic><topic>permeability</topic><topic>Phase shift</topic><topic>Polyimide resins</topic><topic>Polymer industry, paints, wood</topic><topic>polymers</topic><topic>Pore-filling membranes</topic><topic>Porosity</topic><topic>Protective</topic><topic>protective effect</topic><topic>Sulfonated polyimides</topic><topic>sulfonic acid</topic><topic>Technology of polymers</topic><topic>temperature</topic><topic>thermal stability</topic><topic>Water stability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Taipeng</creatorcontrib><creatorcontrib>Sun, Fei</creatorcontrib><creatorcontrib>Wang, Hejin</creatorcontrib><creatorcontrib>Yang, Shiyong</creatorcontrib><creatorcontrib>Fan, Lin</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Taipeng</au><au>Sun, Fei</au><au>Wang, Hejin</au><au>Yang, Shiyong</au><au>Fan, Lin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation and properties of pore-filling membranes based on sulfonated copolyimides and porous polyimide matrix</atitle><jtitle>Polymer (Guilford)</jtitle><date>2012-07-06</date><risdate>2012</risdate><volume>53</volume><issue>15</issue><spage>3154</spage><epage>3162</epage><pages>3154-3162</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><coden>POLMAG</coden><abstract>The porous polyimide films were prepared by a wet phase inversion process. The influence of coagulating non-solvent on morphology, pore size and porosity of porous films was investigated. A series of pore-filling sulfonated polyimide (PFSPI) membranes, which derived from a homogenous spongy-like porous polyimide film as matrix filled with sulfonated copolyimides, were prepared and characterized. These PFSPI membranes exhibited excellent thermal stability with desulfonation temperature of 283–330 °C and good oxidative stability in Fenton's agent due to the protective effect of porous polyimide matrix on the sulfonic acid groups. The swelling of PFSPI membranes could be effectively suppressed by the porous matrix, which leads to the excellent dimensional stability and good water stability of membranes. The PFSPI membranes exhibited high proton conductivity at elevated temperature. All the PFSPI membranes displayed better permselectivity as compared with Nafion 115, which is attributed to their much lower methanol permeability.
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| subjects | Applied sciences dimensional stability Exact sciences and technology Exchange resins and membranes Forms of application and semi-finished materials High temperature Membranes methanol Methyl alcohol Morphology oxidative stability permeability Phase shift Polyimide resins Polymer industry, paints, wood polymers Pore-filling membranes Porosity Protective protective effect Sulfonated polyimides sulfonic acid Technology of polymers temperature thermal stability Water stability |
| title | Preparation and properties of pore-filling membranes based on sulfonated copolyimides and porous polyimide matrix |
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