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Authors
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Petzold, G. ; Schwarz, S. ; Mende, M. ; Petzold, G.
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Title
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Dye flocculation using polyampholytes and polyelectrolyte-surfactant nanoparticles
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Date
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01.08.2007
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Number
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14087
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Abstract
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In this article, we report on the dye flocculation performance of polyampholytes containing hydrophobically modified cationic, hydrophilic nonionic, and anionic monomer units, always with an excess of cationic charges. The results are compared with homopolymers and with those obtained using nonstoichiometric polyelectrolyte-surfactant complex (PSC) dispersions with adjustable surface charge density. The polyampholytes as well as the PSC can successfully remove the dye Celliton Fast Blue (Dispers blue 3). The efficiency of dye separation is mainly influenced by the charge of polymers or complexes, demonstrating that charge neutralization is one flocculation mechanism. However, PSC, which are almost neutral, are also able to remove the dye due to their size and structure. In this case, the degree of dye removal is a little bit better and the so-called flocculation window is broader as in the case of charge neutralization. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 1342-1349, 2007
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Publisher
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Journal of Applied Polymer Science
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Wikidata
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Citation
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Journal of Applied Polymer Science 104 (2007) 1342-1349
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DOI
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https://doi.org/10.1002/app.25876
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