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Alkali Cation Binding to Nonionic Polymers by Cambron, Ronald Edward, 1948- is a book available to read on EtoBox.

What is Alkali Cation Binding to Nonionic Polymers about?

The alkali cation binding of nonelectrolyte polyether type polymers in several nonaqueous solvents was measured by viscometric, spec tropho to.me tr i c, potentiometric and conductance techniques. An attempt was made, to correlate these findings to the ability of those polymers to catalyze nucleophilic substitution reactions to acetate salts with n-butyl bromide. UV-visible studies indicated that the complexation of sodium salts to polyethers in chloroform increased with increasing chain length up to tetraglyme, which contains five oxygen atoms. Further increase in chain length had no apparent effect on the complexing power of the polyethers. Viscometric and potent io metric studies indicated that in these systems many cations were bound to a single high molecular weight chain. These studies also showed that cation binding initially led to chain expansion due to chain bound cation-cation repulsion. Addition of more salt, however, gave a reduction in viscosity as more anions within the polymer domain shielded the positive charges. From conductance results it was shown that the number of cations bound per chain increased with increasing molecular weight. Further addition of polymer l

Author

Cambron, Ronald Edward, 1948-

Publisher

1976.

Published

1976

Language

EN