Ultrasonic Sound Velocity Studies on Dioxane-Water Solutions of 3-α-Furyl Acrylic Acid at 30oC

Abstract

Ultrasonic sound velocity studies of 3-α-furyl acrylic acid (FAA)
in varying proportions of aqueous dioxane mixtures (90, 70, 50 and
30 weight %) were investigated at 30^oC using interferometer operating
at a frequency of  1 MHz. The decrease of  β_ad and increase of
U and Z with concentration indicated the presence of strong interaction
through H-bonding between acid and dioxane molecules.
This is further supported by non-linear increase of   η with concentration.
The positive values of S_n implied the structure-making tendency
while that the negative values implied the structure-breaking
tendency of FAA in a given solvent mixture at 30°C.