Polystyrene modified by grafting

Detalhes bibliográficos
Autor(a) principal: Rocha,Avani Maria C
Data de Publicação: 1997
Outros Autores: Carvalho,Laura Hecker de, Souza,Antonio Gouveia de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000300002
Resumo: Several grades of modified polystyrene were obtained through the graft polymerization of styrene in the presence of modifiers such as ethylene-vinyl acetate (EVA), low density polyethylene (PE), and polybutadiene (PB). These modifiers were used by themselves and in combination. In all cases, the modifier concentration was kept constant at 8% w/w, and the product properties were determined as a function of composition. The polymerization technique employed was that of mass/suspension. The best results were obtained for the PS/mixed modifiers systems. The results confirm that graft copolymers present better impact properties than those of mechanical blends of similar composition.
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spelling Polystyrene modified by graftingpolystyrenegraftingpolybutadieneethylene-vinyl acetatepolyethyleneSeveral grades of modified polystyrene were obtained through the graft polymerization of styrene in the presence of modifiers such as ethylene-vinyl acetate (EVA), low density polyethylene (PE), and polybutadiene (PB). These modifiers were used by themselves and in combination. In all cases, the modifier concentration was kept constant at 8% w/w, and the product properties were determined as a function of composition. The polymerization technique employed was that of mass/suspension. The best results were obtained for the PS/mixed modifiers systems. The results confirm that graft copolymers present better impact properties than those of mechanical blends of similar composition.Sociedade Brasileira de Química1997-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000300002Journal of the Brazilian Chemical Society v.8 n.3 1997reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50531997000300002info:eu-repo/semantics/openAccessRocha,Avani Maria CCarvalho,Laura Hecker deSouza,Antonio Gouveia deeng2011-01-31T00:00:00Zoai:scielo:S0103-50531997000300002Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2011-01-31T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Polystyrene modified by grafting
title Polystyrene modified by grafting
spellingShingle Polystyrene modified by grafting
Rocha,Avani Maria C
polystyrene
grafting
polybutadiene
ethylene-vinyl acetate
polyethylene
title_short Polystyrene modified by grafting
title_full Polystyrene modified by grafting
title_fullStr Polystyrene modified by grafting
title_full_unstemmed Polystyrene modified by grafting
title_sort Polystyrene modified by grafting
author Rocha,Avani Maria C
author_facet Rocha,Avani Maria C
Carvalho,Laura Hecker de
Souza,Antonio Gouveia de
author_role author
author2 Carvalho,Laura Hecker de
Souza,Antonio Gouveia de
author2_role author
author
dc.contributor.author.fl_str_mv Rocha,Avani Maria C
Carvalho,Laura Hecker de
Souza,Antonio Gouveia de
dc.subject.por.fl_str_mv polystyrene
grafting
polybutadiene
ethylene-vinyl acetate
polyethylene
topic polystyrene
grafting
polybutadiene
ethylene-vinyl acetate
polyethylene
description Several grades of modified polystyrene were obtained through the graft polymerization of styrene in the presence of modifiers such as ethylene-vinyl acetate (EVA), low density polyethylene (PE), and polybutadiene (PB). These modifiers were used by themselves and in combination. In all cases, the modifier concentration was kept constant at 8% w/w, and the product properties were determined as a function of composition. The polymerization technique employed was that of mass/suspension. The best results were obtained for the PS/mixed modifiers systems. The results confirm that graft copolymers present better impact properties than those of mechanical blends of similar composition.
publishDate 1997
dc.date.none.fl_str_mv 1997-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000300002
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000300002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50531997000300002
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.8 n.3 1997
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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