1973 Volume 46 Issue 9 Pages 2634-2637
The states of water in lyotropic liquid crystals of the polyoxyethylene–nonylphenylether and water system were investigated by means of near-infrared spectroscopic measurements. The states of water were classified into nonbonded, singly-hydrogen-bonded, and doubly-hydrogen-bonded states, and their relative concentrations were calculated from the intensities of the combination bands of 2ν1+ν3 and ν1+ν2+ν3 in the temperature range from 25 to 50 °C. An increase in the hydrogen-bonded water species was found for the liquid crystal. Furthermore, the nonbonded and singly-hydrogen-bonded water species decreased, while the doubly-hydrogen-bonded water species increased in the liquid crystal structure, as compared with ordinary water. The structural properties of the liquid crystal are discussed.
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