[article]
| Titre : |
Synthesis and properties of environmentally friendly calcium phosphate inhibitor |
| Type de document : |
texte imprimé |
| Auteurs : |
K. Du, Auteur ; Y.-M. Zhou, Auteur ; L.-Q. Wang, Auteur ; Y.-Y. Wang, Auteur |
| Année de publication : |
2009 |
| Article en page(s) : |
p. 152-158 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Carboxylation
Inhibiteurs (chimie)
Phosphate de calcium
Polymères hydrosolubles
Surfactants
|
| Index. décimale : |
668.1 Agents tensioactifs : savons, détergents |
| Résumé : |
The purpose of the paper is to provide a non-phosphorus and nitrogen free calcium phosphate inhibitor maleic anhydride-allyloxy polyethoxy carboxylate. The approach is that synthesized monomer allyloxy polyethoxy carboxylate from allyloxy polyethoxy ether and chloracetic acid, and then prepared maleic anhydride-allyloxy polyethoxy carboxylate by free radical polymerization. Structures of allyloxy polyethoxy carboxylate and maleic anhydride-allyloxy polyethoxy carboxylate were characterized through FT-IR and 1H-NMR. Influence of monomer mole ratio in maleic anhydride-allyloxy polyethoxy carboxylate and viscosity-average molecular weight of maleic anhydride-allyloxy polyethoxy carboxylate on its calcium phosphate inhibition performance was discussed. Calcium tolerance and calcium phosphate inhibition capability of maleic anhydride-allyloxy polyethoxy carboxylate was compared with the latest generation of calcium phosphate inhibitor maleic anhydride-ammonium allylpolyethoxy sulphate, and other two kinds of known inhibitor acrylic acid/2-hydroxypropyl acrylate and acrylic acid/acrylamido-2-methyl-1-propane sulfonic acid. As a result, monomer mole ratio and viscosity-average molecular weight has great impact on property of maleic anhydride-allyloxy polyethoxy carboxylate. Calcium tolerance and calcium phosphate inhibition of maleic anhydride-allyloxy polyethoxy carboxylate is similar to maleic anhydride-ammonium allylpolyethoxy sulphate. The results reveal that maleic anhydride-allyloxy polyethoxy carboxylate is an excellent green calcium phosphate inhibitor. |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5459 |
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 46, N° 3/2009 (05-06/2009) . - p. 152-158
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