Effect of introduced charge in cellulose gels on surface interactions and the adsorption of highly charged cationic polyelectrolytes
The interaction between cellulose surfaces in aqueous solution has been measured using colloidal probe microscopy. Cellulose thin films with varying charge through carboxyl group substitution were used in this study with the surface forces fit to DLVO theory. It was found that the surface potential increased, as expected, with increasing carboxyl substitution. Furthermore, for a given degree of substitution, the surface potential increased as a function of increasing pH. At low pH, the surface...[Show more]
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|Source:||Physical Chemistry Chemical Physics|
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