Polymer-metal complexes based on gellan

被引：0
|
作者：
Vasiliu S. [1 ]
Racovita S. [1 ]
Neagu V. [1 ]
Popa M. [2 ]
Desbrieres J. [3 ]
机构：
[1] Petru Poni Institute of Macromolecular Chemistry, 700487 Iasi
[2] Gh. Asachi Technical University, Faculty of Chemical Engineering, Department of Natural and Synthetic Polymers, 700050 Iasi, Bd. D. Mangeron
[3] Pau and Pays de l'Adour University (UPPA), Institut Pluridisciplinaire de Recherche sur l'Environnement et les Materiaux (IPREM/EPCP), UMR CNRS 5254, 64053 Pau Cedex 09, Helioparc Pau Pyrenees, 2, av. President Angot
来源：
Polimery/Polymers | 2010年 / 55卷 / 11-12期
关键词：
Gellan; Ionotropic gelation; Metal-polymer complexes; Poly(vinyl alcohol); Swelling in water; Thermal stability;
D O I：
10.14314/polimery.2010.839
中图分类号：
学科分类号：
摘要：
By dropwise adding solutions of gellan (Gll) or gellan + poly(vinyl alcohol) (PVAL) mixture into different metal salt solutions-FeCl3 · 6 H2O, FeCl2 · 4 H2O, CoCl 2 · 6 H2O, CuCl2 · 2 H 2O-at 30 °C under constant stirring, preparation of spherical microparticles based on polymer-metal complexes has been performed. FT-IR spectroscopy, TGA analysis and swelling measurements of these microparticles in water showed the influence of the metal type ions on their structure, thermal stability and water swelling capacity. The FT-IR spectroscopy allows to explain the mechanism of polymer-metal complexes formation and the optical microscopy showed that the microparticles obtained had good sphericity with average diameter ranging from 719 μm to 830 μm. The thermal stability of the polymer-metal complexes was found to be higher than that of the gellan.
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页码：839 / 845
页数：6
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