EFFECT OF HYDROCARBON AND FLUORINE-CONTAINING SURFACTANTS ON THE PROPERTIES OF GELATIN IN THE BULK OF THE AQUEOUS-PHASE AND ON THE INTERFACE WITH AIR

The results of studies of the effect of low-molecular-weight SF of dif ferent natures (hydrocarbon and fluoride) on aqueous systems of gelati n both in bulk and on the solution-air interface were reviewed. The ef fect of the SF on the conformational state of the macromolecules, gela tin particle size, surface activity, theological properties of adsorpt ion layers and foam films, stability, and thermodynamic parameters of free black films was examined. It was shown that gelatin modified by l ow-molecular-weight SF is essentially a new SF.