Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane

Detalhes bibliográficos
Autor(a) principal: Carmo, Devaney Ribeiro Do [UNESP]
Data de Publicação: 2004
Outros Autores: Dias Filho, Newton Luiz [UNESP], Stradiotto, Nelson Ramos [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S1516-14392004000300020
http://hdl.handle.net/11449/212964
Resumo: Octakis (hydridodimethylsiloxy) octasilsesquioxane was hydrosilated with allyl chloride using Spiers catalyst (H2PtCl6). This reaction was monitored using FT-IR spectroscopy. The synthesized product was characterized by 13C, 29Si NMR (MAS), SEM, FT-IR, Thermogravimetric techniques. The three propyl groups alpha, beta, gamma, (to the terminal silicon atom), associated of an allyl chloride, were clearly seen in the 13C NMR (alpha-CH2 at 31.8; beta-CH2 at 37.7; gamma-CH2 at 50.1 ppm). In addition, the 29Si NMR spectrum of the final product, exhibits three Q signals for Q type silicon attributed to Q² (-90.1) Q³ (-100.2) and Q4 (-111.3ppm). The presence of allyl chloride substitutes in octameric cube confers a relative porosity and thermal stability to the material.
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spelling Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxaneOctakis (chloropropyldimethylsiloxy) octasilsesquioxanespherosiloxaneOctakis (hydridodimethylsiloxy) octasilsesquioxane was hydrosilated with allyl chloride using Spiers catalyst (H2PtCl6). This reaction was monitored using FT-IR spectroscopy. The synthesized product was characterized by 13C, 29Si NMR (MAS), SEM, FT-IR, Thermogravimetric techniques. The three propyl groups alpha, beta, gamma, (to the terminal silicon atom), associated of an allyl chloride, were clearly seen in the 13C NMR (alpha-CH2 at 31.8; beta-CH2 at 37.7; gamma-CH2 at 50.1 ppm). In addition, the 29Si NMR spectrum of the final product, exhibits three Q signals for Q type silicon attributed to Q² (-90.1) Q³ (-100.2) and Q4 (-111.3ppm). The presence of allyl chloride substitutes in octameric cube confers a relative porosity and thermal stability to the material.Universidade Estadual Paulista, Faculdade de Engenharia de Ilha SolteiraUniversidade Estadual Paulista, Instituto de QuímicaUniversidade Estadual Paulista, Faculdade de Engenharia de Ilha SolteiraUniversidade Estadual Paulista, Instituto de QuímicaABM, ABC, ABPolUniversidade Estadual Paulista (Unesp)Carmo, Devaney Ribeiro Do [UNESP]Dias Filho, Newton Luiz [UNESP]Stradiotto, Nelson Ramos [UNESP]2021-07-14T10:47:52Z2021-07-14T10:47:52Z2004-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article499-504application/pdfhttp://dx.doi.org/10.1590/S1516-14392004000300020Materials Research. São Carlos, SP, Brazil: ABM, ABC, ABPol, v. 7, n. 3, p. 499-504, 2004.1516-14391980-5373http://hdl.handle.net/11449/21296410.1590/S1516-14392004000300020S1516-14392004000300020S1516-14392004000300020.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Researchinfo:eu-repo/semantics/openAccess2024-07-10T14:07:39Zoai:repositorio.unesp.br:11449/212964Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:55:16.463689Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
title Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
spellingShingle Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
Carmo, Devaney Ribeiro Do [UNESP]
Octakis (chloropropyldimethylsiloxy) octasilsesquioxane
spherosiloxane
title_short Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
title_full Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
title_fullStr Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
title_full_unstemmed Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
title_sort Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
author Carmo, Devaney Ribeiro Do [UNESP]
author_facet Carmo, Devaney Ribeiro Do [UNESP]
Dias Filho, Newton Luiz [UNESP]
Stradiotto, Nelson Ramos [UNESP]
author_role author
author2 Dias Filho, Newton Luiz [UNESP]
Stradiotto, Nelson Ramos [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Carmo, Devaney Ribeiro Do [UNESP]
Dias Filho, Newton Luiz [UNESP]
Stradiotto, Nelson Ramos [UNESP]
dc.subject.por.fl_str_mv Octakis (chloropropyldimethylsiloxy) octasilsesquioxane
spherosiloxane
topic Octakis (chloropropyldimethylsiloxy) octasilsesquioxane
spherosiloxane
description Octakis (hydridodimethylsiloxy) octasilsesquioxane was hydrosilated with allyl chloride using Spiers catalyst (H2PtCl6). This reaction was monitored using FT-IR spectroscopy. The synthesized product was characterized by 13C, 29Si NMR (MAS), SEM, FT-IR, Thermogravimetric techniques. The three propyl groups alpha, beta, gamma, (to the terminal silicon atom), associated of an allyl chloride, were clearly seen in the 13C NMR (alpha-CH2 at 31.8; beta-CH2 at 37.7; gamma-CH2 at 50.1 ppm). In addition, the 29Si NMR spectrum of the final product, exhibits three Q signals for Q type silicon attributed to Q² (-90.1) Q³ (-100.2) and Q4 (-111.3ppm). The presence of allyl chloride substitutes in octameric cube confers a relative porosity and thermal stability to the material.
publishDate 2004
dc.date.none.fl_str_mv 2004-09
2021-07-14T10:47:52Z
2021-07-14T10:47:52Z
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/10.1590/S1516-14392004000300020
Materials Research. São Carlos, SP, Brazil: ABM, ABC, ABPol, v. 7, n. 3, p. 499-504, 2004.
1516-1439
1980-5373
http://hdl.handle.net/11449/212964
10.1590/S1516-14392004000300020
S1516-14392004000300020
S1516-14392004000300020.pdf
url http://dx.doi.org/10.1590/S1516-14392004000300020
http://hdl.handle.net/11449/212964
identifier_str_mv Materials Research. São Carlos, SP, Brazil: ABM, ABC, ABPol, v. 7, n. 3, p. 499-504, 2004.
1516-1439
1980-5373
10.1590/S1516-14392004000300020
S1516-14392004000300020
S1516-14392004000300020.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Materials Research
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 499-504
application/pdf
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv SciELO
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
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