A deep investigation into the thermal degradation of urethane dimethacrylate polymer
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10973-021-10610-y http://hdl.handle.net/11449/208554 |
Resumo: | This work investigates in depth the thermal degradation process of a polymer of urethane dimethacrylate (UDMA). UDMA monomer has been widely used in dental restorations and biomaterials. The use of density functional theory (DFT) calculations provided the bases for understanding the structure and reactivity of the UDMA monomer. Simultaneous thermogravimetry–differential thermal analysis, Photovisual Differential Scanning Calorimetry, and mid-infrared spectroscopy (MIR) were used to examine the depolymerization and degradation process. Non-isothermal kinetics made it possible to determine the best fit (n-dimensional nucleation according to Avrami–Erofeev followed by two competitive processes: nth order with autocatalysis by-product and reaction of nth order). Furthermore, the UDMA-P lifetime (5%) was calculated to show a degradation time of 3 years at 100.0 °C. Notwithstanding, techniques such as MIR and nuclear magnetic resonance 13C, 1H linked to DFT calculations helped to elucidate the cleavage positions and possible degradation by-products of UDMA degradation. |
id |
UNSP_95ec81ed68b13f7c9d851af685c83275 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/208554 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
A deep investigation into the thermal degradation of urethane dimethacrylate polymerDepolymerizationDFTPolymer lifetimeSpectroscopic analysesThermal studiesThis work investigates in depth the thermal degradation process of a polymer of urethane dimethacrylate (UDMA). UDMA monomer has been widely used in dental restorations and biomaterials. The use of density functional theory (DFT) calculations provided the bases for understanding the structure and reactivity of the UDMA monomer. Simultaneous thermogravimetry–differential thermal analysis, Photovisual Differential Scanning Calorimetry, and mid-infrared spectroscopy (MIR) were used to examine the depolymerization and degradation process. Non-isothermal kinetics made it possible to determine the best fit (n-dimensional nucleation according to Avrami–Erofeev followed by two competitive processes: nth order with autocatalysis by-product and reaction of nth order). Furthermore, the UDMA-P lifetime (5%) was calculated to show a degradation time of 3 years at 100.0 °C. Notwithstanding, techniques such as MIR and nuclear magnetic resonance 13C, 1H linked to DFT calculations helped to elucidate the cleavage positions and possible degradation by-products of UDMA degradation.School of Sciences Chemistry Department UNESP - São Paulo State UniversitySchool of Sciences Chemistry Department UNESP - São Paulo State UniversityUniversidade Estadual Paulista (Unesp)Alarcon, Rafael Turra [UNESP]Gaglieri, Caroline [UNESP]dos Santos, Giovanny Carvalho [UNESP]Roldao, Juan Carlos [UNESP]Magdalena, Aroldo Geraldo [UNESP]da Silva-Filho, Luiz Carlos [UNESP]Bannach, Gilbert [UNESP]2021-06-25T11:14:00Z2021-06-25T11:14:00Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s10973-021-10610-yJournal of Thermal Analysis and Calorimetry.1588-29261388-6150http://hdl.handle.net/11449/20855410.1007/s10973-021-10610-y2-s2.0-85103572037Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Thermal Analysis and Calorimetryinfo:eu-repo/semantics/openAccess2024-04-29T18:17:13Zoai:repositorio.unesp.br:11449/208554Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-29T18:17:13Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A deep investigation into the thermal degradation of urethane dimethacrylate polymer |
title |
A deep investigation into the thermal degradation of urethane dimethacrylate polymer |
spellingShingle |
A deep investigation into the thermal degradation of urethane dimethacrylate polymer Alarcon, Rafael Turra [UNESP] Depolymerization DFT Polymer lifetime Spectroscopic analyses Thermal studies |
title_short |
A deep investigation into the thermal degradation of urethane dimethacrylate polymer |
title_full |
A deep investigation into the thermal degradation of urethane dimethacrylate polymer |
title_fullStr |
A deep investigation into the thermal degradation of urethane dimethacrylate polymer |
title_full_unstemmed |
A deep investigation into the thermal degradation of urethane dimethacrylate polymer |
title_sort |
A deep investigation into the thermal degradation of urethane dimethacrylate polymer |
author |
Alarcon, Rafael Turra [UNESP] |
author_facet |
Alarcon, Rafael Turra [UNESP] Gaglieri, Caroline [UNESP] dos Santos, Giovanny Carvalho [UNESP] Roldao, Juan Carlos [UNESP] Magdalena, Aroldo Geraldo [UNESP] da Silva-Filho, Luiz Carlos [UNESP] Bannach, Gilbert [UNESP] |
author_role |
author |
author2 |
Gaglieri, Caroline [UNESP] dos Santos, Giovanny Carvalho [UNESP] Roldao, Juan Carlos [UNESP] Magdalena, Aroldo Geraldo [UNESP] da Silva-Filho, Luiz Carlos [UNESP] Bannach, Gilbert [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Alarcon, Rafael Turra [UNESP] Gaglieri, Caroline [UNESP] dos Santos, Giovanny Carvalho [UNESP] Roldao, Juan Carlos [UNESP] Magdalena, Aroldo Geraldo [UNESP] da Silva-Filho, Luiz Carlos [UNESP] Bannach, Gilbert [UNESP] |
dc.subject.por.fl_str_mv |
Depolymerization DFT Polymer lifetime Spectroscopic analyses Thermal studies |
topic |
Depolymerization DFT Polymer lifetime Spectroscopic analyses Thermal studies |
description |
This work investigates in depth the thermal degradation process of a polymer of urethane dimethacrylate (UDMA). UDMA monomer has been widely used in dental restorations and biomaterials. The use of density functional theory (DFT) calculations provided the bases for understanding the structure and reactivity of the UDMA monomer. Simultaneous thermogravimetry–differential thermal analysis, Photovisual Differential Scanning Calorimetry, and mid-infrared spectroscopy (MIR) were used to examine the depolymerization and degradation process. Non-isothermal kinetics made it possible to determine the best fit (n-dimensional nucleation according to Avrami–Erofeev followed by two competitive processes: nth order with autocatalysis by-product and reaction of nth order). Furthermore, the UDMA-P lifetime (5%) was calculated to show a degradation time of 3 years at 100.0 °C. Notwithstanding, techniques such as MIR and nuclear magnetic resonance 13C, 1H linked to DFT calculations helped to elucidate the cleavage positions and possible degradation by-products of UDMA degradation. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:14:00Z 2021-06-25T11:14:00Z 2021-01-01 |
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/10.1007/s10973-021-10610-y Journal of Thermal Analysis and Calorimetry. 1588-2926 1388-6150 http://hdl.handle.net/11449/208554 10.1007/s10973-021-10610-y 2-s2.0-85103572037 |
url |
http://dx.doi.org/10.1007/s10973-021-10610-y http://hdl.handle.net/11449/208554 |
identifier_str_mv |
Journal of Thermal Analysis and Calorimetry. 1588-2926 1388-6150 10.1007/s10973-021-10610-y 2-s2.0-85103572037 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Thermal Analysis and Calorimetry |
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_ |
1799965521708318720 |