Abstract
The interactions of water-soluble polymers with metal ions are studied by ultrafiltration using a molecular-weight cut off of 5000 Da polyethersulfone ultrafiltration membrane. The technique allowed analyzing mathematically the distribution of metal ions bound to previously fractionated high molecular-weight water-soluble polymers or free in the solution from variables experimentally measurable. The Langmuir and Freundlich adsorption isotherms for the system poly(sodium 4-styrenesulfonate) (PSS)/Cd 2+ and poly(allylamine) (PALA)/Ni 2+ are obtained for ultrafiltration experiments performed at constant ionic strength and divalent metal ion concentration two orders of magnitude lower than the polymer concentration. Based on the expressions of these isotherms, the analytical expressions of the retention profiles have been deduced.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
