Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design
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 UFRGS |
Texto Completo: | http://hdl.handle.net/10183/19877 |
Resumo: | In this work was employed a 23 factorial experiment design to evaluate the castor oil polyurethane- poly(methyl methacrylate) semi-IPN synthesis. The reaction parameters used as independent variables were NCO/OH molar ratio, polyurethane polymerization time and methyl methacrylate (MMA) content. The semi-IPNs were cured over 28 h using two thermal treatments. The polymers were characterized by infrared and Raman spectroscopy, thermal analysis and swelling profiles in n-hexane. The glass transition temperature (Tg) and the swelling were more affect by the NCO/OH molar ratio variation. The semi-IPNs showed Tg from - 27 to - 6 °C and the swelling range was from 3 to 22%, according to the crosslink density. The IPN mechanical properties were dependent on the cure temperature and MMA content in it. Lower elastic modulus values were observed in IPNs cured at room temperature. |
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Cunha, Fernanda Oliveira Vieira daMelo, Diogo Henrique RoeslerVeronese, Vinicius BassanesiForte, Maria Madalena de Camargo2010-04-16T09:12:01Z20041516-1439http://hdl.handle.net/10183/19877000448635In this work was employed a 23 factorial experiment design to evaluate the castor oil polyurethane- poly(methyl methacrylate) semi-IPN synthesis. The reaction parameters used as independent variables were NCO/OH molar ratio, polyurethane polymerization time and methyl methacrylate (MMA) content. The semi-IPNs were cured over 28 h using two thermal treatments. The polymers were characterized by infrared and Raman spectroscopy, thermal analysis and swelling profiles in n-hexane. The glass transition temperature (Tg) and the swelling were more affect by the NCO/OH molar ratio variation. The semi-IPNs showed Tg from - 27 to - 6 °C and the swelling range was from 3 to 22%, according to the crosslink density. The IPN mechanical properties were dependent on the cure temperature and MMA content in it. Lower elastic modulus values were observed in IPNs cured at room temperature.application/pdfengMaterials research : revista ibero-americana de materiais. São Carlos, SP. vol. 7, no. 4 (Oct./Dec. 2004), p. 539-543PolímerosCastor oilSemi-IPNExperimental designPoly (methyl methacrylate)Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental designinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000448635.pdf000448635.pdfTexto completo (inglês)application/pdf151374http://www.lume.ufrgs.br/bitstream/10183/19877/1/000448635.pdf133401d089d83eb619bd221002c2001bMD51TEXT000448635.pdf.txt000448635.pdf.txtExtracted Texttext/plain18371http://www.lume.ufrgs.br/bitstream/10183/19877/2/000448635.pdf.txt18cd71d54a56dd098447ff6eb5d8d464MD52THUMBNAIL000448635.pdf.jpg000448635.pdf.jpgGenerated Thumbnailimage/jpeg1676http://www.lume.ufrgs.br/bitstream/10183/19877/3/000448635.pdf.jpg4e5cea7124f2dea699012e643c18278cMD5310183/198772022-04-20 04:45:19.224795oai:www.lume.ufrgs.br:10183/19877Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-04-20T07:45:19Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design |
title |
Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design |
spellingShingle |
Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design Cunha, Fernanda Oliveira Vieira da Polímeros Castor oil Semi-IPN Experimental design Poly (methyl methacrylate) |
title_short |
Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design |
title_full |
Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design |
title_fullStr |
Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design |
title_full_unstemmed |
Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design |
title_sort |
Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design |
author |
Cunha, Fernanda Oliveira Vieira da |
author_facet |
Cunha, Fernanda Oliveira Vieira da Melo, Diogo Henrique Roesler Veronese, Vinicius Bassanesi Forte, Maria Madalena de Camargo |
author_role |
author |
author2 |
Melo, Diogo Henrique Roesler Veronese, Vinicius Bassanesi Forte, Maria Madalena de Camargo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Cunha, Fernanda Oliveira Vieira da Melo, Diogo Henrique Roesler Veronese, Vinicius Bassanesi Forte, Maria Madalena de Camargo |
dc.subject.por.fl_str_mv |
Polímeros |
topic |
Polímeros Castor oil Semi-IPN Experimental design Poly (methyl methacrylate) |
dc.subject.eng.fl_str_mv |
Castor oil Semi-IPN Experimental design Poly (methyl methacrylate) |
description |
In this work was employed a 23 factorial experiment design to evaluate the castor oil polyurethane- poly(methyl methacrylate) semi-IPN synthesis. The reaction parameters used as independent variables were NCO/OH molar ratio, polyurethane polymerization time and methyl methacrylate (MMA) content. The semi-IPNs were cured over 28 h using two thermal treatments. The polymers were characterized by infrared and Raman spectroscopy, thermal analysis and swelling profiles in n-hexane. The glass transition temperature (Tg) and the swelling were more affect by the NCO/OH molar ratio variation. The semi-IPNs showed Tg from - 27 to - 6 °C and the swelling range was from 3 to 22%, according to the crosslink density. The IPN mechanical properties were dependent on the cure temperature and MMA content in it. Lower elastic modulus values were observed in IPNs cured at room temperature. |
publishDate |
2004 |
dc.date.issued.fl_str_mv |
2004 |
dc.date.accessioned.fl_str_mv |
2010-04-16T09:12:01Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/19877 |
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1516-1439 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000448635 |
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1516-1439 000448635 |
url |
http://hdl.handle.net/10183/19877 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Materials research : revista ibero-americana de materiais. São Carlos, SP. vol. 7, no. 4 (Oct./Dec. 2004), p. 539-543 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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