Study of castor oil polyurethane - poly (methyl methacrylate) semi-interpenetrating polymer network (SIPN) reaction parameters using a 2³ factorial experimental design

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Autor(a) principal: Cunha, Fernanda Oliveira Vieira da
Data de Publicação: 2004
Outros Autores: Melo, Diogo Henrique Roesler, Veronese, Vinicius Bassanesi, Forte, Maria Madalena de Camargo
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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spelling 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
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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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