Effect of the radiolitic sterilization in polyethylene/starch blends
Autor(a) principal: | |
---|---|
Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000500018 |
Resumo: | Samples of LDPE/modified starch blends 80/20 m/m before and after exposure to gamma rays were examined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction. The effect of gamma radiation is clearly seen in the samples irradiated at a dose of 25 kGy. The main alteration in the polymeric material after exposure at the radiation range was a decrease in the mechanical properties, alterations in the chemical structure of the blend with an increase in the carbonyl and vinyl indices and the appearance of new crystalline symmetry generating a crystalline domain not existing before in the blend. |
id |
SBQ-3_5578230f4b74953a787599dd14361f76 |
---|---|
oai_identifier_str |
oai:scielo:S0100-40422008000500018 |
network_acronym_str |
SBQ-3 |
network_name_str |
Química Nova (Online) |
repository_id_str |
|
spelling |
Effect of the radiolitic sterilization in polyethylene/starch blendspolyethylenegamma radiationstarchSamples of LDPE/modified starch blends 80/20 m/m before and after exposure to gamma rays were examined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction. The effect of gamma radiation is clearly seen in the samples irradiated at a dose of 25 kGy. The main alteration in the polymeric material after exposure at the radiation range was a decrease in the mechanical properties, alterations in the chemical structure of the blend with an increase in the carbonyl and vinyl indices and the appearance of new crystalline symmetry generating a crystalline domain not existing before in the blend.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000500018Química Nova v.31 n.5 2008reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422008000500018info:eu-repo/semantics/openAccessFerreira,Flávia Gonçalves DominguesLima,Maria Alice Gomes de AndradeAlmeida,Yêda Medeiros Bastos deVinhas,Glória Mariaeng2008-09-12T00:00:00Zoai:scielo:S0100-40422008000500018Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2008-09-12T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Effect of the radiolitic sterilization in polyethylene/starch blends |
title |
Effect of the radiolitic sterilization in polyethylene/starch blends |
spellingShingle |
Effect of the radiolitic sterilization in polyethylene/starch blends Ferreira,Flávia Gonçalves Domingues polyethylene gamma radiation starch |
title_short |
Effect of the radiolitic sterilization in polyethylene/starch blends |
title_full |
Effect of the radiolitic sterilization in polyethylene/starch blends |
title_fullStr |
Effect of the radiolitic sterilization in polyethylene/starch blends |
title_full_unstemmed |
Effect of the radiolitic sterilization in polyethylene/starch blends |
title_sort |
Effect of the radiolitic sterilization in polyethylene/starch blends |
author |
Ferreira,Flávia Gonçalves Domingues |
author_facet |
Ferreira,Flávia Gonçalves Domingues Lima,Maria Alice Gomes de Andrade Almeida,Yêda Medeiros Bastos de Vinhas,Glória Maria |
author_role |
author |
author2 |
Lima,Maria Alice Gomes de Andrade Almeida,Yêda Medeiros Bastos de Vinhas,Glória Maria |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Ferreira,Flávia Gonçalves Domingues Lima,Maria Alice Gomes de Andrade Almeida,Yêda Medeiros Bastos de Vinhas,Glória Maria |
dc.subject.por.fl_str_mv |
polyethylene gamma radiation starch |
topic |
polyethylene gamma radiation starch |
description |
Samples of LDPE/modified starch blends 80/20 m/m before and after exposure to gamma rays were examined by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction. The effect of gamma radiation is clearly seen in the samples irradiated at a dose of 25 kGy. The main alteration in the polymeric material after exposure at the radiation range was a decrease in the mechanical properties, alterations in the chemical structure of the blend with an increase in the carbonyl and vinyl indices and the appearance of new crystalline symmetry generating a crystalline domain not existing before in the blend. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-01-01 |
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=S0100-40422008000500018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000500018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422008000500018 |
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 |
Química Nova v.31 n.5 2008 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318107649376256 |