INFLUENCE OF THE MOLECULAR-MASS DISTRIBUTION OF GELATINS MODIFIED WITH A LIKI-1 TANNING AGENT ON THE RHEOLOGICAL PARAMETERS OF INTERPHASE ADSORPTION LAYERS AT THE INTERFASE OF AN AQUEOUS SOLUTION OF GELATIN-METAXYLENEM. A. Sakvarelidze,a S. M. Levachev,b A. E. Kharlov,b V. N. Izmailova,b and G. P. Yampol'skayab UDC 541.182.02+547.96.541.183 The influence of the interaction of gelatin with a protected formaldehyde tanning agent on the rheological parameters of interphase adsorption layers formed at the interface of a 0.1% aqueous solution of gelatin-metaxylene has been investigated as a function of the mass-molecular distribution of initial gelatins. It has been shown that the chemical modification of gelatin with tanning agents weakens the process of gel formation in the interphase layer directly with the depth of the tanning process. This dependence is the most pronounced for gelatin with a high content of fractions with a molecular mass of more than 285 kDa. a Moscow Cinema-Video Institute, Moscow, Russia; b M. V. Lomonosov Moscow State University, Moscow, Russia; email: Harlov@colloid.chem.msu.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 3, pp. 76-80, May-June, 2003. Original article submitted September 6, 2002.