Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/20255 |
Resumo: | A novel room-temperature white light emitter amide-cross linked alkyl/siloxane hybrid material (amidosil A) was produced by self-organization through the rational design of the precursor. This hybrid displays a highly complex hierarchical architecture composed of two lamellar bilayer structures, the relative spatial arrangement of which yields a multiplicity of ordered nanodomains with variable shapes and sizes, some of them persisting at the microscale. Macroscopically A was obtained as clusters of hydrophobic hemispherical and spherical micro-objects exhibiting a lettuce coral-like pattern, which represent unprecedented pieces of evidence illustrating the principles of self-similarity and demonstrating that the time scale of biomimetic morphogenesis in this non-bridged silsesquioxane is similar to that in biological systems. Heating metastable A above the order/disorder phase transition acted as an external quake driving the material to another metastable state, which has persisted for more than 12 months, and was manifested as a marked change of all the macroscopic properties. The occurrence of the self-organization process operating on A, instead of a self-directed assembly, is primarily associated with the formation/rupture of hydrogen bonds, therefore supporting that these interactions are critical factors dictating on what side of the self-assembly/self-organization boundary a non-bridged silsesquioxane system will evolve. |
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Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybridORGANIC-INORGANIC HYBRIDSBRIDGED SILSESQUIOXANESALKYL CHAINSLAMELLAR STRUCTUREQUANTUM YIELDSLIGHT EMISSIONMONOLAYERSSILICAPHOTOLUMINESCENCECONFORMATIONA novel room-temperature white light emitter amide-cross linked alkyl/siloxane hybrid material (amidosil A) was produced by self-organization through the rational design of the precursor. This hybrid displays a highly complex hierarchical architecture composed of two lamellar bilayer structures, the relative spatial arrangement of which yields a multiplicity of ordered nanodomains with variable shapes and sizes, some of them persisting at the microscale. Macroscopically A was obtained as clusters of hydrophobic hemispherical and spherical micro-objects exhibiting a lettuce coral-like pattern, which represent unprecedented pieces of evidence illustrating the principles of self-similarity and demonstrating that the time scale of biomimetic morphogenesis in this non-bridged silsesquioxane is similar to that in biological systems. Heating metastable A above the order/disorder phase transition acted as an external quake driving the material to another metastable state, which has persisted for more than 12 months, and was manifested as a marked change of all the macroscopic properties. The occurrence of the self-organization process operating on A, instead of a self-directed assembly, is primarily associated with the formation/rupture of hydrogen bonds, therefore supporting that these interactions are critical factors dictating on what side of the self-assembly/self-organization boundary a non-bridged silsesquioxane system will evolve.ROYAL SOC CHEMISTRY2017-12-07T19:40:43Z2014-01-01T00:00:00Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/20255eng2046-206910.1039/c4ra11300dNunes, S. C.Ferreira, C. B.Ferreira, R. A. S.Carlos, L. D.Ferro, M. C.Mano, J. F.Almeida, P.Bermudez, V. de Zeainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:39:41Zoai:ria.ua.pt:10773/20255Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:54:58.342262Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid |
title |
Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid |
spellingShingle |
Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid Nunes, S. C. ORGANIC-INORGANIC HYBRIDS BRIDGED SILSESQUIOXANES ALKYL CHAINS LAMELLAR STRUCTURE QUANTUM YIELDS LIGHT EMISSION MONOLAYERS SILICA PHOTOLUMINESCENCE CONFORMATION |
title_short |
Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid |
title_full |
Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid |
title_fullStr |
Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid |
title_full_unstemmed |
Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid |
title_sort |
Fractality and metastability of a complex amide cross-linked dipodal alkyl/siloxane hybrid |
author |
Nunes, S. C. |
author_facet |
Nunes, S. C. Ferreira, C. B. Ferreira, R. A. S. Carlos, L. D. Ferro, M. C. Mano, J. F. Almeida, P. Bermudez, V. de Zea |
author_role |
author |
author2 |
Ferreira, C. B. Ferreira, R. A. S. Carlos, L. D. Ferro, M. C. Mano, J. F. Almeida, P. Bermudez, V. de Zea |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Nunes, S. C. Ferreira, C. B. Ferreira, R. A. S. Carlos, L. D. Ferro, M. C. Mano, J. F. Almeida, P. Bermudez, V. de Zea |
dc.subject.por.fl_str_mv |
ORGANIC-INORGANIC HYBRIDS BRIDGED SILSESQUIOXANES ALKYL CHAINS LAMELLAR STRUCTURE QUANTUM YIELDS LIGHT EMISSION MONOLAYERS SILICA PHOTOLUMINESCENCE CONFORMATION |
topic |
ORGANIC-INORGANIC HYBRIDS BRIDGED SILSESQUIOXANES ALKYL CHAINS LAMELLAR STRUCTURE QUANTUM YIELDS LIGHT EMISSION MONOLAYERS SILICA PHOTOLUMINESCENCE CONFORMATION |
description |
A novel room-temperature white light emitter amide-cross linked alkyl/siloxane hybrid material (amidosil A) was produced by self-organization through the rational design of the precursor. This hybrid displays a highly complex hierarchical architecture composed of two lamellar bilayer structures, the relative spatial arrangement of which yields a multiplicity of ordered nanodomains with variable shapes and sizes, some of them persisting at the microscale. Macroscopically A was obtained as clusters of hydrophobic hemispherical and spherical micro-objects exhibiting a lettuce coral-like pattern, which represent unprecedented pieces of evidence illustrating the principles of self-similarity and demonstrating that the time scale of biomimetic morphogenesis in this non-bridged silsesquioxane is similar to that in biological systems. Heating metastable A above the order/disorder phase transition acted as an external quake driving the material to another metastable state, which has persisted for more than 12 months, and was manifested as a marked change of all the macroscopic properties. The occurrence of the self-organization process operating on A, instead of a self-directed assembly, is primarily associated with the formation/rupture of hydrogen bonds, therefore supporting that these interactions are critical factors dictating on what side of the self-assembly/self-organization boundary a non-bridged silsesquioxane system will evolve. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01T00:00:00Z 2014 2017-12-07T19:40:43Z |
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://hdl.handle.net/10773/20255 |
url |
http://hdl.handle.net/10773/20255 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2046-2069 10.1039/c4ra11300d |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
ROYAL SOC CHEMISTRY |
publisher.none.fl_str_mv |
ROYAL SOC CHEMISTRY |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137602594406400 |