Publicação
A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions
| Resumo: | A local composition model based on the lattice theory and two-fluid theory, considering the excess heat capacity, which is a modified Wilson equation, is developed for the excess Gibbs energy of aqueous polymer solutions. The model represents a synergistic combination of the excess entropy for mixing molecules of different sizes and the temperature dependent residual contribution, which combines the attractive interactions between solvent molecules and the segments with the contribution of the excess heat capacity. The results of the extrapolation with respect to molecular weight of phase equilibrium in aqueous polymer solutions with this model are very satisfactory, with only two adjustable parameters. |
|---|---|
| Autores principais: | Xin Xu |
| Outros Autores: | Madeira, Pedro; Teixeira, J. A.; Macedo, Eugénia |
| Assunto: | Model Activity Local composition Wilson Polymer solutions Vapor–liquid equilibrium Excess Gibbs energy Aqueous two-phase systems |
| Ano: | 2003 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867437913409585152 |
|---|---|
| author | Xin Xu |
| author2 | Madeira, Pedro Teixeira, J. A. Macedo, Eugénia |
| author2_role | author author author |
| author_facet | Xin Xu Madeira, Pedro Teixeira, J. A. Macedo, Eugénia |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Xin Xu\"},{\"Person.name\":\"Madeira, Pedro\"},{\"Person.name\":\"Teixeira, J. A.\"},{\"Person.name\":\"Macedo, Eugénia\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Xin Xu Madeira, Pedro Teixeira, J. A. Macedo, Eugénia |
| datacite.date.Accepted.fl_str_mv | 2003-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2005-05-30T15:55:22Z |
| datacite.date.embargoed.fl_str_mv | 2005-05-30T15:55:22Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Model Activity Local composition Wilson Polymer solutions Vapor–liquid equilibrium Excess Gibbs energy Aqueous two-phase systems |
| datacite.titles.title.fl_str_mv | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Xin Xu Madeira, Pedro Teixeira, J. A. Macedo, Eugénia |
| dc.date.Accepted.fl_str_mv | 2003-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2005-05-30T15:55:22Z |
| dc.date.embargoed.fl_str_mv | 2005-05-30T15:55:22Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/1856 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Model Activity Local composition Wilson Polymer solutions Vapor–liquid equilibrium Excess Gibbs energy Aqueous two-phase systems |
| dc.title.fl_str_mv | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | A local composition model based on the lattice theory and two-fluid theory, considering the excess heat capacity, which is a modified Wilson equation, is developed for the excess Gibbs energy of aqueous polymer solutions. The model represents a synergistic combination of the excess entropy for mixing molecules of different sizes and the temperature dependent residual contribution, which combines the attractive interactions between solvent molecules and the segments with the contribution of the excess heat capacity. The results of the extrapolation with respect to molecular weight of phase equilibrium in aqueous polymer solutions with this model are very satisfactory, with only two adjustable parameters. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/aa280d00-b43a-4089-b891-70e758f7bb73/download |
| id | rum_6bb8daec7a4e6cbc1e05baede554ce48 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/1856 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/1856 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Xin Xu Madeira, Pedro Teixeira, J. A. Macedo, Eugénia |
| publishDate | 2003 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engElsevierengA local composition model based on the lattice theory and two-fluid theory, considering the excess heat capacity, which is a modified Wilson equation, is developed for the excess Gibbs energy of aqueous polymer solutions. The model represents a synergistic combination of the excess entropy for mixing molecules of different sizes and the temperature dependent residual contribution, which combines the attractive interactions between solvent molecules and the segments with the contribution of the excess heat capacity. The results of the extrapolation with respect to molecular weight of phase equilibrium in aqueous polymer solutions with this model are very satisfactory, with only two adjustable parameters.application/pdfengA new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutionsXin XuMadeira, PedroTeixeira, J. A.Macedo, EugéniaHostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptCITATION“Fluid phase equilibria”. ISSN 0378-3812. 213:1-2 (2003) 53-63.ISSNIsPartOf0378-3812DOIIsPartOf10.1016/S0378-3812(03)00185-72005-05-30T15:55:22Z20032003-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/1856http://purl.org/coar/access_right/c_abf2open accessModelActivityLocal compositionWilsonPolymer solutionsVapor–liquid equilibriumExcess Gibbs energyAqueous two-phase systems214894 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/aa280d00-b43a-4089-b891-70e758f7bb73/download |
| spellingShingle | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions Xin Xu Model Activity Local composition Wilson Polymer solutions Vapor–liquid equilibrium Excess Gibbs energy Aqueous two-phase systems |
| status | SINGLETON |
| subject.fl_str_mv | Model Activity Local composition Wilson Polymer solutions Vapor–liquid equilibrium Excess Gibbs energy Aqueous two-phase systems |
| title | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions |
| title_full | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions |
| title_fullStr | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions |
| title_full_unstemmed | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions |
| title_short | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions |
| title_sort | A new modified Wilson equation for the calculation of vapor–liquid equilibrium of aqueous polymer solutions |
| topic | Model Activity Local composition Wilson Polymer solutions Vapor–liquid equilibrium Excess Gibbs energy Aqueous two-phase systems |
| topic_facet | Model Activity Local composition Wilson Polymer solutions Vapor–liquid equilibrium Excess Gibbs energy Aqueous two-phase systems |
| url | https://hdl.handle.net/1822/1856 |
| visible | 1 |