Santhiya, D. ; Nandini, G. ; Subramanian, S. ; Natarajan, K. A. ; Malghan, S. G. (1998) Effect of polymer molecular weight on the absorption of polyacrylic acid at the alumina-water interface Colloids and Surfaces A: Physicochemical and Engineering Aspects, 133 (1-2). pp. 157-163. ISSN 0927-7757
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S09277...
Related URL: http://dx.doi.org/10.1016/S0927-7757(97)00132-5
Abstract
The absorption and electrokinetic characteristics of alumina suspensions in the presence of polyacrylic acid as a dispersant have been studied. The adsorption isotherms exhibit high-affinity Langmuirian behaviour. The adsorption density decreases with increasing in pH, while it increases with increasing molecular weight of the polymer. Electrokinetic studies indicate specific adsorption at and above the isoelectric point of the alumina sample. Possible mechanisms of interaction between alumina and polyacrylic acid are discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Adsorption; α-alumina; Electrokinetic; Electrostatic and Chemical Interaction; Hydrogen Bonding; Polyacrylic Acid (PAA) |
| ID Code: | 24457 |
| Deposited On: | 29 Nov 2010 08:52 |
| Last Modified: | 08 Jun 2011 11:55 |
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