129Xe-NMR of carbon black filled elastomers

129Xe-NMR of carbon black filled elastomers

It is shown that 129Xe-NMR is a powerful tool to investigate carbon black and carbon black filled elastomers. For the carbon black material itself the129Xe chemical shift of xenon adsorbed at the surface of carbon black aggregates yields information about the relative average pore size of the carbon black aggregates. The experimental 129Xe-NMR results of carbon black filled ethylene-propylene-diene (EPDM) can be explained when it is assumed that the xenon atoms in the bound EPDM fraction exchange rapidly on the NMR time scale between a state where they are adsorbed on the carbon black surface and a state in which they are absorbed in the EPDM layer. This would imply that the carbon black aggregates are not completely covered with EPDM chains.

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Main Authors: Sperling-Ischinsky,K., Veeman,W.S.
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Química 1999
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531999000400008
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spelling oai:scielo:S0103-505319990004000082001-06-21129Xe-NMR of carbon black filled elastomersSperling-Ischinsky,K.Veeman,W.S. carbon black elastomers filled elastomers 129Xe-NMR It is shown that 129Xe-NMR is a powerful tool to investigate carbon black and carbon black filled elastomers. For the carbon black material itself the129Xe chemical shift of xenon adsorbed at the surface of carbon black aggregates yields information about the relative average pore size of the carbon black aggregates. The experimental 129Xe-NMR results of carbon black filled ethylene-propylene-diene (EPDM) can be explained when it is assumed that the xenon atoms in the bound EPDM fraction exchange rapidly on the NMR time scale between a state where they are adsorbed on the carbon black surface and a state in which they are absorbed in the EPDM layer. This would imply that the carbon black aggregates are not completely covered with EPDM chains.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society v.10 n.4 19991999-08-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531999000400008en10.1590/S0103-50531999000400008
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Sperling-Ischinsky,K.
Veeman,W.S.
spellingShingle Sperling-Ischinsky,K.
Veeman,W.S.
129Xe-NMR of carbon black filled elastomers
author_facet Sperling-Ischinsky,K.
Veeman,W.S.
author_sort Sperling-Ischinsky,K.
title 129Xe-NMR of carbon black filled elastomers
title_short 129Xe-NMR of carbon black filled elastomers
title_full 129Xe-NMR of carbon black filled elastomers
title_fullStr 129Xe-NMR of carbon black filled elastomers
title_full_unstemmed 129Xe-NMR of carbon black filled elastomers
title_sort 129xe-nmr of carbon black filled elastomers
description It is shown that 129Xe-NMR is a powerful tool to investigate carbon black and carbon black filled elastomers. For the carbon black material itself the129Xe chemical shift of xenon adsorbed at the surface of carbon black aggregates yields information about the relative average pore size of the carbon black aggregates. The experimental 129Xe-NMR results of carbon black filled ethylene-propylene-diene (EPDM) can be explained when it is assumed that the xenon atoms in the bound EPDM fraction exchange rapidly on the NMR time scale between a state where they are adsorbed on the carbon black surface and a state in which they are absorbed in the EPDM layer. This would imply that the carbon black aggregates are not completely covered with EPDM chains.
publisher Sociedade Brasileira de Química
publishDate 1999
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531999000400008
work_keys_str_mv AT sperlingischinskyk 129xenmrofcarbonblackfilledelastomers
AT veemanws 129xenmrofcarbonblackfilledelastomers
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