Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
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/1822/50153 |
Resumo: | Modern synchrotron beamlines equipped with two-dimensional detectors and high-flux microfocus devices offer interesting possibilities for polymer characterization. This work presents three synchrotron X-ray studies performed in specific multicomponent polymer systems. In the first study, quantification of transcrystallinity in microfibrillar composites (MFC) by wide-angle X-ray scattering (WAXS) and a direct relation between the mechanical properties of the composites and the thickness of the transcrystalline layers is presented. The second study demonstrates monitoring of nanostructure development under controlled strain in MFC and their precursors by small-angle X-ray scattering (SAXS). A specially developed procedure for data treatment that uses the Chord Distribution Function formalism permitted to prove reversible strain-induced crystallization of matrix material in the MFC materials. In the third study, a 5 5 lm high flux X-ray beam was used to scan in WAXS mode polymer microcapsules (average diameters of 20–50 lm) with polyamide shells in which various solid payloads were incorporated by in-situ polymerization. Exfoliation/intercalation phenomena and local inhomogeneity at micron scale are studied in clay and metal containing polyamide microcapsules that constitute a new platform for the development of polymer hybrids or smart micro devices. It was concluded that relating microscopy and/or mechanical data of various polymer samples to their synchrotron WAXS/SAXS patterns helps to understand the structure–properties relationship in complex polymer systems with controlled composition, morphology and nanostructure. |
id |
RCAP_e663a969e3c5fb6eb4e446625dcaca8a |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/50153 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
|
spelling |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scatteringSynchrotron X-ray scattering of polymersSEM (scanning electron microscopy)Microfocus X-ray studiesMulticomponent polymer systemsPolymer microcapsulesCiências Naturais::Ciências FísicasScience & TechnologyModern synchrotron beamlines equipped with two-dimensional detectors and high-flux microfocus devices offer interesting possibilities for polymer characterization. This work presents three synchrotron X-ray studies performed in specific multicomponent polymer systems. In the first study, quantification of transcrystallinity in microfibrillar composites (MFC) by wide-angle X-ray scattering (WAXS) and a direct relation between the mechanical properties of the composites and the thickness of the transcrystalline layers is presented. The second study demonstrates monitoring of nanostructure development under controlled strain in MFC and their precursors by small-angle X-ray scattering (SAXS). A specially developed procedure for data treatment that uses the Chord Distribution Function formalism permitted to prove reversible strain-induced crystallization of matrix material in the MFC materials. In the third study, a 5 5 lm high flux X-ray beam was used to scan in WAXS mode polymer microcapsules (average diameters of 20–50 lm) with polyamide shells in which various solid payloads were incorporated by in-situ polymerization. Exfoliation/intercalation phenomena and local inhomogeneity at micron scale are studied in clay and metal containing polyamide microcapsules that constitute a new platform for the development of polymer hybrids or smart micro devices. It was concluded that relating microscopy and/or mechanical data of various polymer samples to their synchrotron WAXS/SAXS patterns helps to understand the structure–properties relationship in complex polymer systems with controlled composition, morphology and nanostructure.This work was supported by FEDER funds through the COMPETE 2020 Programme and National Funds through Portuguese Foundation for Science and Technology (FCT) under the project UID/CTM/50025/2013. N. Dencheva is grateful to the FCT for supporting her research by the postdoctoral award SFRH/BPD/45252/2008 and to the n-STeP project with reference NORTE-07-0124-FEDER-000039, supported by the Programa Operacional Regional do Norte (ON.2). The financial support of PETRA III (MiNaXS beamline) of the German Synchrotron Facility DESY – Hamburg (Project No I-20130095 EC) Germany are also gratefully acknowledged.info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoDencheva, Nadya VasilevaStribeck, AlmutDenchev, Z.20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/50153engDENCHEVA N, STRIBECK A, DENCHEV Z* - Nanostructure Development in Multicomponent Polymer Systems and its Characterization by X-ray scattering, European Polymer Journal, 81:447-469 (2016)0014-30571873-194510.1016/j.eurpolymj.2016.02.004https://www.sciencedirect.com/science/article/pii/S0014305716300507?via%3Dihubinfo: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:RCAAP2023-07-21T12:48:42ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering |
title |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering |
spellingShingle |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering Dencheva, Nadya Vasileva Synchrotron X-ray scattering of polymers SEM (scanning electron microscopy) Microfocus X-ray studies Multicomponent polymer systems Polymer microcapsules Ciências Naturais::Ciências Físicas Science & Technology |
title_short |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering |
title_full |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering |
title_fullStr |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering |
title_full_unstemmed |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering |
title_sort |
Nanostructure development in multicomponent polymer systems characterized by synchrotron X-ray scattering |
author |
Dencheva, Nadya Vasileva |
author_facet |
Dencheva, Nadya Vasileva Stribeck, Almut Denchev, Z. |
author_role |
author |
author2 |
Stribeck, Almut Denchev, Z. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Dencheva, Nadya Vasileva Stribeck, Almut Denchev, Z. |
dc.subject.por.fl_str_mv |
Synchrotron X-ray scattering of polymers SEM (scanning electron microscopy) Microfocus X-ray studies Multicomponent polymer systems Polymer microcapsules Ciências Naturais::Ciências Físicas Science & Technology |
topic |
Synchrotron X-ray scattering of polymers SEM (scanning electron microscopy) Microfocus X-ray studies Multicomponent polymer systems Polymer microcapsules Ciências Naturais::Ciências Físicas Science & Technology |
description |
Modern synchrotron beamlines equipped with two-dimensional detectors and high-flux microfocus devices offer interesting possibilities for polymer characterization. This work presents three synchrotron X-ray studies performed in specific multicomponent polymer systems. In the first study, quantification of transcrystallinity in microfibrillar composites (MFC) by wide-angle X-ray scattering (WAXS) and a direct relation between the mechanical properties of the composites and the thickness of the transcrystalline layers is presented. The second study demonstrates monitoring of nanostructure development under controlled strain in MFC and their precursors by small-angle X-ray scattering (SAXS). A specially developed procedure for data treatment that uses the Chord Distribution Function formalism permitted to prove reversible strain-induced crystallization of matrix material in the MFC materials. In the third study, a 5 5 lm high flux X-ray beam was used to scan in WAXS mode polymer microcapsules (average diameters of 20–50 lm) with polyamide shells in which various solid payloads were incorporated by in-situ polymerization. Exfoliation/intercalation phenomena and local inhomogeneity at micron scale are studied in clay and metal containing polyamide microcapsules that constitute a new platform for the development of polymer hybrids or smart micro devices. It was concluded that relating microscopy and/or mechanical data of various polymer samples to their synchrotron WAXS/SAXS patterns helps to understand the structure–properties relationship in complex polymer systems with controlled composition, morphology and nanostructure. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2016-01-01T00:00:00Z |
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/1822/50153 |
url |
http://hdl.handle.net/1822/50153 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
DENCHEVA N, STRIBECK A, DENCHEV Z* - Nanostructure Development in Multicomponent Polymer Systems and its Characterization by X-ray scattering, European Polymer Journal, 81:447-469 (2016) 0014-3057 1873-1945 10.1016/j.eurpolymj.2016.02.004 https://www.sciencedirect.com/science/article/pii/S0014305716300507?via%3Dihub |
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 |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
|
repository.mail.fl_str_mv |
|
_version_ |
1777303849196847104 |