Can I read Hydrations and water properties in the super salt-resistive gel probed by FT-IR on EtoBox?

Hydrations and water properties in the super salt-resistive gel probed by FT-IR by Eisuke Okazaki; Mitsuru Satoh is a Materials Science article available to read on EtoBox.

What is Hydrations and water properties in the super salt-resistive gel probed by FT-IR about?

The so-called "Super Salt-Resistive Gel", i.e., poly(4-vinyl phenol) (P4VPh) hydrogel, of different water contents (H 1⁄4 95e40%) was prepared by crosslinking with different amounts of ethylene glycol diglycidyl ether (EGDGE). FT-IR spectroscopy was used to investigate the hydration and hydrogen bond (HB) properties of water in the gel samples. The OH stretching band around 3300 cm À1 was deconvoluted into four sub-bands. On the basis of the relative band area and the peak wave number, it was suggested that HB of water in the gel is most stabilized when the acidic proton of the phenol residue is intact, being free from the chemical crosslinking. Difference spectra for the water band obtained in the presence of salts suggested that only sulfate systems specifically affect polymer hydrations in the gel phase. The sulfate systems were also specific in the perturbation on the main chain CH 2 stretching band; namely, with increasing the salt concentration, the peak showed a significant blue shift, which means that the hydrophobic hydration is stabilized by the typical salting-out divalent anion. All the experimental results on the FT-IR spectroscopy for the P4VPh hydrogel seem to be con

Who reads Hydrations and water properties in the super salt-resistive gel probed by FT-IR?

Author

Eisuke Okazaki; Mitsuru Satoh

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0032-3861)

Published

2010

Language

EN

Field

Materials Science (Physical Sciences)