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Molecular Crystals and Liquid Crystals Volume 555, 2012 - Issue 1: Proceedings of the 11th International Conference on Frontiers of Polymers and Advanced Materials (ICFPAM 2011)
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Original Articles

Studies of the Alumina Suspension Stability in the Presence of Anionic Polymer—Influences of Polymer Molecular Weight, its Concentration and Solution pH

M. Wiśniewska Department of Radiochemistry and Colloid Chemistry
,
K. Terpiłowski Department of Physical Chemistry-Interfacial Phenomena, Faculty of Chemistry, Maria Curie Skłodowska University, Sq. Maria Curie Skłodowka 3, 20-031, Lublin, Poland
,
S. Chibowski Department of Radiochemistry and Colloid Chemistry
,
E. Chibowski Department of Physical Chemistry-Interfacial Phenomena, Faculty of Chemistry, Maria Curie Skłodowska University, Sq. Maria Curie Skłodowka 3, 20-031, Lublin, Poland
&
T. Urban Department of Radiochemistry and Colloid Chemistry
Pages 7-16 | Received 15 Jul 2011, Accepted 15 Sep 2011, Published online: 14 Feb 2012
 
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Abstract

The effect of an anionic polymer—polyacrylic acid (PAA) adsorption on the alumina (Al2O3) suspension stability was studied. The influence of the following parameters was examined: polymer molecular weight, its concentration and solution pH. Two methods were used to monitoring the suspension stability: turbidimetry and spectrophotometry. The conformational changes of macromolecules, both adsorbed and non-adsorbed, determine the stabilization—flocculation properties of the alumina suspension in the presence of the polymer.

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