Phase separation phenomena in solutions of polysulfone in mixtures of a solvent and a nonsolvent: relationship with membrane formation
The phase separation phenomena in ternary solutions of polysulfone (PSf) in mixtures of a solvent and a nonsolvent ( N, N-dimethylacetamide (DMAc) and water, in most cases) are investigated. The liquid-liquid demixing gap is determined and it is shown that its location in the ternary phase diagram i...
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| Veröffentlicht in: | Polymer (Guilford) 1985-01, Vol.26 (10), p.1539-1545 |
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| container_title | Polymer (Guilford) |
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| creator | Wijmans, J.G Kant, J Mulder, M.H.V Smolders, C.A |
| description | The phase separation phenomena in ternary solutions of polysulfone (PSf) in mixtures of a solvent and a nonsolvent (
N,
N-dimethylacetamide (DMAc) and water, in most cases) are investigated. The liquid-liquid demixing gap is determined and it is shown that its location in the ternary phase diagram is mainly determined by the PSf-nonsolvent interaction parameter. The critical point in the PSf/DMAc/water system lies at a high polymer concentration of about 8% by weight. Calorimetric measurements with very concentrated PSf/DMAc/water solutions (prepared through liquid-liquid demixing, polymer concentration of the polymer-rich phase up to 60%) showed no heat effects in the temperature range of −20°C to 50°C. It is suggested that gelation in PSf systems is completely amorphous. The results are incorporated into a discussion of the formation of polysulfone membranes. |
| doi_str_mv | 10.1016/0032-3861(85)90090-4 |
| format | Article |
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N,
N-dimethylacetamide (DMAc) and water, in most cases) are investigated. The liquid-liquid demixing gap is determined and it is shown that its location in the ternary phase diagram is mainly determined by the PSf-nonsolvent interaction parameter. The critical point in the PSf/DMAc/water system lies at a high polymer concentration of about 8% by weight. Calorimetric measurements with very concentrated PSf/DMAc/water solutions (prepared through liquid-liquid demixing, polymer concentration of the polymer-rich phase up to 60%) showed no heat effects in the temperature range of −20°C to 50°C. It is suggested that gelation in PSf systems is completely amorphous. The results are incorporated into a discussion of the formation of polysulfone membranes.</description><identifier>ISSN: 0032-3861</identifier><identifier>EISSN: 1873-2291</identifier><identifier>DOI: 10.1016/0032-3861(85)90090-4</identifier><identifier>CODEN: POLMAG</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; crystallization ; Exact sciences and technology ; liquid-liquid demixing ; membrane formation ; membrane structures ; Organic polymers ; Physicochemistry of polymers ; polysulfone ; Properties and characterization ; Solution and gel properties ; solutions</subject><ispartof>Polymer (Guilford), 1985-01, Vol.26 (10), p.1539-1545</ispartof><rights>1985</rights><rights>1986 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c410t-36ddb95878b4a9b7fb634c382dcdad449470a26f381533234eea921f51960f613</citedby><cites>FETCH-LOGICAL-c410t-36ddb95878b4a9b7fb634c382dcdad449470a26f381533234eea921f51960f613</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0032386185900904$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=8509602$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Wijmans, J.G</creatorcontrib><creatorcontrib>Kant, J</creatorcontrib><creatorcontrib>Mulder, M.H.V</creatorcontrib><creatorcontrib>Smolders, C.A</creatorcontrib><title>Phase separation phenomena in solutions of polysulfone in mixtures of a solvent and a nonsolvent: relationship with membrane formation</title><title>Polymer (Guilford)</title><description>The phase separation phenomena in ternary solutions of polysulfone (PSf) in mixtures of a solvent and a nonsolvent (
N,
N-dimethylacetamide (DMAc) and water, in most cases) are investigated. The liquid-liquid demixing gap is determined and it is shown that its location in the ternary phase diagram is mainly determined by the PSf-nonsolvent interaction parameter. The critical point in the PSf/DMAc/water system lies at a high polymer concentration of about 8% by weight. Calorimetric measurements with very concentrated PSf/DMAc/water solutions (prepared through liquid-liquid demixing, polymer concentration of the polymer-rich phase up to 60%) showed no heat effects in the temperature range of −20°C to 50°C. It is suggested that gelation in PSf systems is completely amorphous. The results are incorporated into a discussion of the formation of polysulfone membranes.</description><subject>Applied sciences</subject><subject>crystallization</subject><subject>Exact sciences and technology</subject><subject>liquid-liquid demixing</subject><subject>membrane formation</subject><subject>membrane structures</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>polysulfone</subject><subject>Properties and characterization</subject><subject>Solution and gel properties</subject><subject>solutions</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1985</creationdate><recordtype>article</recordtype><recordid>eNp9kM1u1TAQhS0EEpfCG7DwAiFYBPyXxGaBVFX8SZVgAWvLcca6RokdPEmhL8Bz49xbdcnK8pxvzswcQp5z9oYz3r1lTIpG6o6_0u1rw5hhjXpADlz3shHC8IfkcI88Jk8QfzLGRCvUgfz9dnQIFGFxxa0xJ7ocIeUZkqMxUczTtleR5kCXPN3iNoWcYNfm-GfdCpwkt5M3kFbq0lh_qbacC-9ogenkjMe40N9xPdIZ5qG46hJymU_aU_IouAnh2d17QX58_PD96nNz_fXTl6vL68YrztZGduM4mFb3elDODH0YOqm81GL0oxuVMqpnTnRBat5KKaQCcEbw0HLTsdBxeUFenn2Xkn9tgKudI3qYprpN3tAK1XOmzQ6qM-hLRiwQ7FLi7Mqt5czuods9UbsnanVrT6FbVdte3Pk79G4K9Uof8b5Xt6wuIir2_oxBvfUmQrHoIyQPYyzgVzvm-P85_wBx0pgi</recordid><startdate>19850101</startdate><enddate>19850101</enddate><creator>Wijmans, J.G</creator><creator>Kant, J</creator><creator>Mulder, M.H.V</creator><creator>Smolders, C.A</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>19850101</creationdate><title>Phase separation phenomena in solutions of polysulfone in mixtures of a solvent and a nonsolvent: relationship with membrane formation</title><author>Wijmans, J.G ; Kant, J ; Mulder, M.H.V ; Smolders, C.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c410t-36ddb95878b4a9b7fb634c382dcdad449470a26f381533234eea921f51960f613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1985</creationdate><topic>Applied sciences</topic><topic>crystallization</topic><topic>Exact sciences and technology</topic><topic>liquid-liquid demixing</topic><topic>membrane formation</topic><topic>membrane structures</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>polysulfone</topic><topic>Properties and characterization</topic><topic>Solution and gel properties</topic><topic>solutions</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wijmans, J.G</creatorcontrib><creatorcontrib>Kant, J</creatorcontrib><creatorcontrib>Mulder, M.H.V</creatorcontrib><creatorcontrib>Smolders, C.A</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wijmans, J.G</au><au>Kant, J</au><au>Mulder, M.H.V</au><au>Smolders, C.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phase separation phenomena in solutions of polysulfone in mixtures of a solvent and a nonsolvent: relationship with membrane formation</atitle><jtitle>Polymer (Guilford)</jtitle><date>1985-01-01</date><risdate>1985</risdate><volume>26</volume><issue>10</issue><spage>1539</spage><epage>1545</epage><pages>1539-1545</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><coden>POLMAG</coden><abstract>The phase separation phenomena in ternary solutions of polysulfone (PSf) in mixtures of a solvent and a nonsolvent (
N,
N-dimethylacetamide (DMAc) and water, in most cases) are investigated. The liquid-liquid demixing gap is determined and it is shown that its location in the ternary phase diagram is mainly determined by the PSf-nonsolvent interaction parameter. The critical point in the PSf/DMAc/water system lies at a high polymer concentration of about 8% by weight. Calorimetric measurements with very concentrated PSf/DMAc/water solutions (prepared through liquid-liquid demixing, polymer concentration of the polymer-rich phase up to 60%) showed no heat effects in the temperature range of −20°C to 50°C. It is suggested that gelation in PSf systems is completely amorphous. The results are incorporated into a discussion of the formation of polysulfone membranes.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/0032-3861(85)90090-4</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Polymer (Guilford), 1985-01, Vol.26 (10), p.1539-1545 |
| issn | 0032-3861 1873-2291 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_24710891 |
| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences crystallization Exact sciences and technology liquid-liquid demixing membrane formation membrane structures Organic polymers Physicochemistry of polymers polysulfone Properties and characterization Solution and gel properties solutions |
| title | Phase separation phenomena in solutions of polysulfone in mixtures of a solvent and a nonsolvent: relationship with membrane formation |
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