Hydrated porosity of macroreticular cation exchange resins via nuclear magnetic resonance

1971 ◽  
Vol 43 (11) ◽  
pp. 1506-1508 ◽  
Author(s):  
L. S. Frankel
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Cation Exchange ◽  
Cation Exchange Resins ◽  
Exchange Resins ◽  
Nuclear Magnetic

Proton magnetic resonance studies of ionic solvation in ion-exchange resins.: Part I. Sulfonated cation-exchange resins

1970 ◽  
Vol 48 (6) ◽  
pp. 917-923 ◽  
Author(s):  
T. E. Gough ◽  
H. D. Sharma ◽  
N. Subramanian
Keyword(s):  
Magnetic Resonance ◽  
Chemical Shift ◽  
Ion Exchange ◽  
Temperature Dependence ◽  
Cation Exchange ◽  
Proton Magnetic Resonance ◽  
Resin Matrix ◽  
Strong Electrolyte ◽  
Cation Exchange Resins ◽  
Exchange Resins

The proton magnetic resonance spectra of cation-exchange resins of crosslinkage X1 to X16 in the H+, Li+, Na+, K +, Rb+, Cs+, and NH4+ forms have been recorded and the values of the molal chemical shift, δM+0, are found to be −0.321, −0.005, 0.041, 0.031, 0.028, 0.015, and 0.00 (assumed) p.p.m./mole, respectively, for the cations. These values are very nearly equal to those observed in corresponding aqueous solutions, indicating that ion–solvent interactions are similar in both the resin matrix and the aqueous solution. The temperature dependence of the chemical shift shows the same trend. The effective hydration numbers calculated from the temperature dependence are 2.0 (4.81 m) for the H+ form, 4.8 (3.25 m) and 3.6 (5.26 m) for the Na+ form, 4.4 (3.9 m) for the K+ form, and 2.4 (6.18 m) for the Cs+ form. The ions in the resin phase behave as solutions of strong electrolyte, which is consistent with the polyelectrolyte gel model for the ion-exchange resin.

Nuclear magnetic resonance study of ion-exchange resins

1970 ◽  
Vol 42 (6) ◽  
pp. 570-575 ◽  
Author(s):  
R. W. Creekmore ◽  
Charles N. Reilley
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Ion Exchange ◽  
Nuclear Magnetic Resonance Study ◽  
Ion Exchange Resins ◽  
Magnetic Resonance Study ◽  
Exchange Resins ◽  
Nuclear Magnetic

scholarly journals Nuclear Magnetic Resonance at the Interface: Identifying Preferred Binding Regions in Multimodal Cation Exchange Chromatography using Functionalized Nanoparticles

2019 ◽  
Vol 116 (3) ◽  
pp. 483a
Author(s):  
Ronak B. Gudhka ◽  
Camille L. Bilodeau ◽  
Scott A. McCallum ◽  
Mark A. Mccoy ◽  
David J. Roush ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Cation Exchange ◽  
Exchange Chromatography ◽  
Cation Exchange Chromatography ◽  
Functionalized Nanoparticles ◽  
Binding Regions ◽  
Nuclear Magnetic
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