The interaction between polyelectrolyte complexes made from poly(dimethyldiallylammonium chloride) (PDMDAAC) and poly(maleic acid-co-α-methylstyrene) (P(MS-α-MeSty)) and cellulosic materials
✍ Scribed by Gudrun Petzold; Klaus Lunkwitz
- Book ID
- 103967211
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 531 KB
- Volume
- 98
- Category
- Article
- ISSN
- 0927-7757
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✦ Synopsis
The interaction between the oppositely charged polyelectrolytes poly(dimethyldiallylammonium chloride) (PDMDAAC) and poly(maleic acid-co-c~-methylstyrene) (P(MS-e-MeSty)) in the presence of cellulose or a mixture of cellulose and clay, respectively, has been investigated. The application of different methods allowed the characterization of flocculation and surface modification. It has been found for step-by-step addition that the flocculation behaviour of this two-component system (dual system) depends on the molar ratio of the two polymers used and also on the concentration of polycation. Only at a certain concentration of PDMDAAC does the two component system lead to a considerable improvement in the flocculation behaviour and in surface modification, as compared to a pure polycation.
The addition of a premixed polyelectrolyte complex has also been found to be a successful method. However, the mechanism of flocculation is supposed to be different for complexes with different molar ratios.