Abstract
The ion exchange equilibria of Br– on three strongly basic anion exchange resins of different exchange capacities and different cross-linking degrees by five alkanoates (MCm), a phosphate, and eight alkanedioates (DCn; m,n = number of carbon atoms) were analyzed, and the selectivity coefficients for their monoanion and dianion, K11 and K21 were evaluated as a function of percent exchange (%E). The decrease in the K11 values of MCm with an increase in %E was attributed to the interference with hydration of MCm in the resin phase, while the increase in the K11 values of DCn to the intermolecular hydrogen bonding between exchanged acidic anions. The log K21 values of DCn at %E = 0 plotted against n showed the minimum rather than the maximum as described previously. The reason has been discussed in terms of the hydrophobic interaction of DCn with the polymer matrix, intramolecular hydrogen bonding, and the charge density.
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.
