Synthesis and preliminary characterization of octakis (chloropropyldimethylsiloxy) octasilsesquioxane
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808128875704614912 |