Publicação
Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis
| Resumo: | The synthesis of poly(urethane–urea) shells (PUU) using poly(ethylene glycols) of different molecular weights and methylene-bis(4-cyclohexyliso- cyanate) was performed for the microencapsulation of limonene, using a step growth polymerization process. The obtained microcapsules were structurally characterized by dynamic light scattering, optical microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The results showed that the core–shell microcapsules had spherical shape, a mean diameter in between 10 and 20 μm, and characteristic urethane-urea bonds. Furthermore, the molecular weight of polyol influences the entrapment efficiency, which ranged from 38 to 55%. The release data were analyzed by applying the Korsmeyer–Peppas model. |
|---|---|
| Autores principais: | Silva, Mónica |
| Outros Autores: | Martins, Isabel P.; Barreiro, M.F.; Dias, Madalena M.; Rodrigues, Alírio |
| Assunto: | Core–shell polymer Limonene Microencapsulation Step-growth polymerization Structure-properties |
| Ano: | 2017 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade Politécnica de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital da UPB |
| _version_ | 1877782553672286208 |
|---|---|
| author | Silva, Mónica |
| author2 | Martins, Isabel P. Barreiro, M.F. Dias, Madalena M. Rodrigues, Alírio |
| author2_role | author author author author |
| author_facet | Silva, Mónica Martins, Isabel P. Barreiro, M.F. Dias, Madalena M. Rodrigues, Alírio |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital da UPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Silva, Mónica\"},{\"Person.name\":\"Martins, Isabel P.\"},{\"Person.name\":\"Barreiro, M.F.\",\"Person.identifier.cienciaID\":\"3418-47D5-5746\",\"Person.identifier.orcid\":\"0000-0002-6844-333X\",\"Person.identifier.researcherID\":\"L-9802-2014\",\"Person.identifier.scopusAuthorID\":\"57188719717\"},{\"Person.name\":\"Dias, Madalena M.\"},{\"Person.name\":\"Rodrigues, Alírio\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital da UPB |
| datacite.creators.creator.creatorName.fl_str_mv | Silva, Mónica Martins, Isabel P. Barreiro, M.F. Dias, Madalena M. Rodrigues, Alírio |
| datacite.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2017-12-14T11:35:24Z |
| datacite.date.embargoed.fl_str_mv | 2017-12-14T11:35:24Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Core–shell polymer Limonene Microencapsulation Step-growth polymerization Structure-properties |
| datacite.titles.title.fl_str_mv | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis |
| dc.contributor.none.fl_str_mv | Biblioteca Digital da UPB |
| dc.creator.none.fl_str_mv | Silva, Mónica Martins, Isabel P. Barreiro, M.F. Dias, Madalena M. Rodrigues, Alírio |
| dc.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2017-12-14T11:35:24Z |
| dc.date.embargoed.fl_str_mv | 2017-12-14T11:35:24Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/14718 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Core–shell polymer Limonene Microencapsulation Step-growth polymerization Structure-properties |
| dc.title.fl_str_mv | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The synthesis of poly(urethane–urea) shells (PUU) using poly(ethylene glycols) of different molecular weights and methylene-bis(4-cyclohexyliso- cyanate) was performed for the microencapsulation of limonene, using a step growth polymerization process. The obtained microcapsules were structurally characterized by dynamic light scattering, optical microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The results showed that the core–shell microcapsules had spherical shape, a mean diameter in between 10 and 20 μm, and characteristic urethane-urea bonds. Furthermore, the molecular weight of polyol influences the entrapment efficiency, which ranged from 38 to 55%. The release data were analyzed by applying the Korsmeyer–Peppas model. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://bibliotecadigital.unipb.pt/bitstreams/e193f3f7-a459-4d5f-8cb8-b9984b7afbeb/download |
| id | ipb_4dbbccc33f96a6bb187d747820fee1e2 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/14718 |
| inst_facet_str | urn:organizationAcronym:unipb{{{_:::_}}}Universidade Politécnica de Bragança |
| instacron_str | unipb |
| institution | Universidade Politécnica de Bragança |
| instname_str | Universidade Politécnica de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital da UPB |
| oai_identifier_str | oai:bibliotecadigital.unipb.pt:10198/14718 |
| organization_str_mv | urn:organizationAcronym:unipb |
| person_str_mv | Silva, Mónica Martins, Isabel P. Barreiro, M.F. Barreiro, M.F. https://www.ciencia-id.pt/3418-47D5-5746 3418-47D5-5746 http://orcid.org/0000-0002-6844-333X 0000-0002-6844-333X Dias, Madalena M. Rodrigues, Alírio |
| publishDate | 2017 |
| repo_facet_str | urn:repositoryAcronym:ipb{{{_:::_}}}Biblioteca Digital da UPB |
| reponame_str | Biblioteca Digital da UPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engpt_PTThe synthesis of poly(urethane–urea) shells (PUU) using poly(ethylene glycols) of different molecular weights and methylene-bis(4-cyclohexyliso- cyanate) was performed for the microencapsulation of limonene, using a step growth polymerization process. The obtained microcapsules were structurally characterized by dynamic light scattering, optical microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The results showed that the core–shell microcapsules had spherical shape, a mean diameter in between 10 and 20 μm, and characteristic urethane-urea bonds. Furthermore, the molecular weight of polyol influences the entrapment efficiency, which ranged from 38 to 55%. The release data were analyzed by applying the Korsmeyer–Peppas model.application/pdfpt_PTPreparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysisSilva, MónicaMartins, Isabel P.PersonalBarreiro, M.F.DSpacehttp://dspace.org/items/0391987c-ba90-488b-839a-153447ce1f0fDSpacehttp://dspace.org/items/0391987c-ba90-488b-839a-153447ce1f0fBarreiroFilomenaCiência IDhttps://www.ciencia-id.pt3418-47D5-5746ORCIDhttp://orcid.org0000-0002-6844-333XResearcher IDhttps://www.researcherid.comL-9802-2014Scopus Author IDhttps://www.scopus.com57188719717Dias, Madalena M.Rodrigues, AlírioHostingInstitutionOrganizationalBiblioteca Digital da UPBe-mailmailto:dspace@unipb.ptdspace@unipb.ptISSNIsPartOf1023-666XDOIIsPartOf10.1080/1023666X.2017.13692532017-12-14T11:35:24Z20172017-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/14718http://purl.org/coar/access_right/c_16ecrestricted accessCore–shell polymerLimoneneMicroencapsulationStep-growth polymerizationStructure-properties1694024 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal article2017http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://bibliotecadigital.unipb.pt/bitstreams/e193f3f7-a459-4d5f-8cb8-b9984b7afbeb/downloadInternational Journal of Polymer Analysis and Characterization228709724 |
| spellingShingle | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis Silva, Mónica Core–shell polymer Limonene Microencapsulation Step-growth polymerization Structure-properties |
| status | SINGLETON |
| subject.fl_str_mv | Core–shell polymer Limonene Microencapsulation Step-growth polymerization Structure-properties |
| title | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis |
| title_full | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis |
| title_fullStr | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis |
| title_full_unstemmed | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis |
| title_short | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis |
| title_sort | Preparation and characterization of poly(urethane–urea) microcapsules containing limonene. Kinetic analysis |
| topic | Core–shell polymer Limonene Microencapsulation Step-growth polymerization Structure-properties |
| topic_facet | Core–shell polymer Limonene Microencapsulation Step-growth polymerization Structure-properties |
| url | http://hdl.handle.net/10198/14718 |
| visible | 1 |
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