A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/app.53962 http://hdl.handle.net/11449/249875 |
Resumo: | Carbon dioxide (CO2) occurs naturally, though its emissions have been increasing due to anthropogenic activities, and its increasing atmospheric concentration levels are causing a greenhouse effect. In efforts to develop new carbon dioxide utilization (CDU) methodologies, the catalyzed reaction of CO2 with epoxidized vegetable oil, obtained from Brazilian macaw oil and Baru oil, to form carbonated oils for novel and sustainable monomers was explored. A screening process is carried out to develop the best reaction conditions, by varying catalyst/cocatalyst loading, reaction time, CO2 pressure, and the reaction temperature, resulting in conversions of 100%. The aluminum(salen) complex shows a selective and efficient catalyst activity. Both carbonated oils are reacted with amines (1,6-diaminohexane, lysine, and 4,4′-methylenebis [cyclohexylamine]) to provide weldable polyhydroxyurethanes. Polymers synthesized from lysine provide a more selective reaction and higher cross-linked structures, with fewer side reactions involving the glyceride groups. All the synthesized polymers are thermally stable above 200°C and differential scanning calorimetry (DSC) analysis shows two main thermal events, related to the glass transition (Tg) and the topology-freezing transition temperature (Tv). The Tv result indicates that the polymer has weldable properties due to chemical bond exchange. Thus, these polymers can be healed into different shapes upon exposure to red light (660 nm). |
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A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymersaluminum catalystBrazilian biomasscyclic carbonategreenhouse utilizationrenewable materialweldable materialCarbon dioxide (CO2) occurs naturally, though its emissions have been increasing due to anthropogenic activities, and its increasing atmospheric concentration levels are causing a greenhouse effect. In efforts to develop new carbon dioxide utilization (CDU) methodologies, the catalyzed reaction of CO2 with epoxidized vegetable oil, obtained from Brazilian macaw oil and Baru oil, to form carbonated oils for novel and sustainable monomers was explored. A screening process is carried out to develop the best reaction conditions, by varying catalyst/cocatalyst loading, reaction time, CO2 pressure, and the reaction temperature, resulting in conversions of 100%. The aluminum(salen) complex shows a selective and efficient catalyst activity. Both carbonated oils are reacted with amines (1,6-diaminohexane, lysine, and 4,4′-methylenebis [cyclohexylamine]) to provide weldable polyhydroxyurethanes. Polymers synthesized from lysine provide a more selective reaction and higher cross-linked structures, with fewer side reactions involving the glyceride groups. All the synthesized polymers are thermally stable above 200°C and differential scanning calorimetry (DSC) analysis shows two main thermal events, related to the glass transition (Tg) and the topology-freezing transition temperature (Tv). The Tv result indicates that the polymer has weldable properties due to chemical bond exchange. Thus, these polymers can be healed into different shapes upon exposure to red light (660 nm).Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Carlos Institute of Chemistry University of São PauloDepartment of Chemistry School of Science UNESP—São Paulo State UniversityDepartment of Chemical and Biological Engineering University of SheffieldDepartment of Chemistry The University of York Green Chemistry Centre of ExcellenceDepartment of Chemistry School of Science UNESP—São Paulo State UniversityFAPESP: 2019/11493-4FAPESP: 2021/02152-9FAPESP: 2021/14879-0Universidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)University of SheffieldGreen Chemistry Centre of ExcellenceAlarcon, Rafael T. [UNESP]Lamb, Katie J.Cavalheiro, Éder T. G.North, MichaelBannach, Gilbert [UNESP]2023-07-29T16:11:38Z2023-07-29T16:11:38Z2023-06-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1002/app.53962Journal of Applied Polymer Science, v. 140, n. 24, 2023.1097-46280021-8995http://hdl.handle.net/11449/24987510.1002/app.539622-s2.0-85153062539Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Applied Polymer Scienceinfo:eu-repo/semantics/openAccess2024-04-29T18:16:58Zoai:repositorio.unesp.br:11449/249875Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-29T18:16:58Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers |
title |
A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers |
spellingShingle |
A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers Alarcon, Rafael T. [UNESP] aluminum catalyst Brazilian biomass cyclic carbonate greenhouse utilization renewable material weldable material |
title_short |
A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers |
title_full |
A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers |
title_fullStr |
A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers |
title_full_unstemmed |
A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers |
title_sort |
A screening process for carbonation of vegetable oils using an aluminum(salen) complex with a further application as weldable polymers |
author |
Alarcon, Rafael T. [UNESP] |
author_facet |
Alarcon, Rafael T. [UNESP] Lamb, Katie J. Cavalheiro, Éder T. G. North, Michael Bannach, Gilbert [UNESP] |
author_role |
author |
author2 |
Lamb, Katie J. Cavalheiro, Éder T. G. North, Michael Bannach, Gilbert [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) University of Sheffield Green Chemistry Centre of Excellence |
dc.contributor.author.fl_str_mv |
Alarcon, Rafael T. [UNESP] Lamb, Katie J. Cavalheiro, Éder T. G. North, Michael Bannach, Gilbert [UNESP] |
dc.subject.por.fl_str_mv |
aluminum catalyst Brazilian biomass cyclic carbonate greenhouse utilization renewable material weldable material |
topic |
aluminum catalyst Brazilian biomass cyclic carbonate greenhouse utilization renewable material weldable material |
description |
Carbon dioxide (CO2) occurs naturally, though its emissions have been increasing due to anthropogenic activities, and its increasing atmospheric concentration levels are causing a greenhouse effect. In efforts to develop new carbon dioxide utilization (CDU) methodologies, the catalyzed reaction of CO2 with epoxidized vegetable oil, obtained from Brazilian macaw oil and Baru oil, to form carbonated oils for novel and sustainable monomers was explored. A screening process is carried out to develop the best reaction conditions, by varying catalyst/cocatalyst loading, reaction time, CO2 pressure, and the reaction temperature, resulting in conversions of 100%. The aluminum(salen) complex shows a selective and efficient catalyst activity. Both carbonated oils are reacted with amines (1,6-diaminohexane, lysine, and 4,4′-methylenebis [cyclohexylamine]) to provide weldable polyhydroxyurethanes. Polymers synthesized from lysine provide a more selective reaction and higher cross-linked structures, with fewer side reactions involving the glyceride groups. All the synthesized polymers are thermally stable above 200°C and differential scanning calorimetry (DSC) analysis shows two main thermal events, related to the glass transition (Tg) and the topology-freezing transition temperature (Tv). The Tv result indicates that the polymer has weldable properties due to chemical bond exchange. Thus, these polymers can be healed into different shapes upon exposure to red light (660 nm). |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T16:11:38Z 2023-07-29T16:11:38Z 2023-06-20 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1002/app.53962 Journal of Applied Polymer Science, v. 140, n. 24, 2023. 1097-4628 0021-8995 http://hdl.handle.net/11449/249875 10.1002/app.53962 2-s2.0-85153062539 |
url |
http://dx.doi.org/10.1002/app.53962 http://hdl.handle.net/11449/249875 |
identifier_str_mv |
Journal of Applied Polymer Science, v. 140, n. 24, 2023. 1097-4628 0021-8995 10.1002/app.53962 2-s2.0-85153062539 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Applied Polymer Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964829606215680 |