2007
DOI: 10.1002/app.25609
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Characterization of a superabsorbent polymer

Abstract: ABSTRACT:We studied an amorphous polymer superabsorbent, able to absorb until 1000 times its weight of water. It is consisted of macromolecular chains, dependent between them by chemical bonds. The swelling of the product in the presence of water gives rise to a polyelectrolytic gel. The chemical analysis of polymer by energy dispersive spectrometry and photoelectrons spectroscopy with a microsounder X showed that the product is homogeneous. It contains carbon, oxygen, and sodium. The measurements of specific … Show more

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Cited by 4 publications
(5 citation statements)
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“…The grain's diameter varies between 10 and 100 μm. The major functional grouping constituting the X10 polymer was identified by IR spectroscopy 21. Its morphological aspect appears nonporous and presents a weak specific surface 21…”
Section: Methodsmentioning
confidence: 99%
“…The grain's diameter varies between 10 and 100 μm. The major functional grouping constituting the X10 polymer was identified by IR spectroscopy 21. Its morphological aspect appears nonporous and presents a weak specific surface 21…”
Section: Methodsmentioning
confidence: 99%
“… crescimento de grandes cristais de hidróxido de cálcio e talvez agulhas de etringita: esta expansão pode ser atribuída à formação e ao crescimento de grandes cristais de hidróxido de cálcio e talvez agulhas de etringita (AFt), durante as reações de hidratação (BAROGHEL-BOUNY et al, 2002). Segundo Lura (2003), a expansão das pastas e concreto, nas idades bem jovens, é atribuída ao aparecimento da pressão produzida pelo crescimento de uma fase sólida;…”
Section: -Expansão Inicialunclassified
“… pressão de disjunção: segundo Lura (2003), como a superfície total dos produtos de hidratação é maior do que os reagentes, eles emergem. A região onde a adsorção é impedida incrementase à medida que prossegue a hidratação.…”
Section: -Expansão Inicialunclassified
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