[article]
| Titre : |
Impact of Heat Treatment on the Performance of Polymers as Ferric Ions Stabilization Agents for Aqueous Systems |
| Type de document : |
texte imprimé |
| Auteurs : |
Zahid Amjad, Auteur |
| Année de publication : |
2008 |
| Article en page(s) : |
p. 66-71 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Ions métalliques
Polymères
Stabilisants (chimie)
|
| Tags : |
Stabilité thermique |
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
The impact of heat treatment on the performance of various polymers as ferric ions stabilization agents in an aqueous system at pH 7.00, 23°C has been investigated. The polymers evaluated include: (a) homo-polymers of acrylic acid, methacrylic acid, maleic acid, 2-acrylamido-2-methylpropane sulfonic acid, sulfonated styrene; (b) co-polymers of acrylic acid:2-acrylamido-2-methylpropane sulfonic acid and maleic acid:sulfonated styrene, and (c) ter-polymers of acrylic acid:2-acryalamido-2-methylpropane sulfonic acid:sulfonated styrene, acrylic acid: methacrylic acid:t-butylacrylamide, and acrylic acid:2-acrylamido-2-methylpropane sulfonic acid:t-butylacrylamide. It has been found that all polymers lose performance to a varying degree when exposed to thermal treatment (150°C, 200°C, 240°C, 20hr). The performance data collected before and after thermal treatment suggest that sulfonated styrene containing co- and ter-polymers are better ferric ions stabilization agents than the co- and ter-polymers containing 2-acrylamido-2-methylpropane sulfonic acid and t-butylacrylamide. In addition, it has been found that heat treatment exhibits positive influence on the performance of homo-polymer of 2-acrylamido-2-methypropane sulfonic acid. The results have been explained in terms of loss of 2-acrylamido-2-methylpropane sulfonic acid and t-butylacrylamide in the co- and ter-polymers during thermal treatment. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3031 |
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 45, N° 2/2008 (03-04/2008) . - p. 66-71
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Impact of Heat Treatment on the Performance of Polymers as Ferric Ions Stabilization Agents for Aqueous Systems in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 45, N° 2/2008 (03-04/2008)
