Тhe interaction of polyacrylamide cross-linked by N, N ‘-metylenebisakrylamide (PAAm) with

water vapor, water and water solutions of NaCl, Na2SO4, NH4Cl, (NH4)2SO4 and sucrose of different

concentration еxperimentaly has been studyed. Dependence of degree of swelling of polyacrylamide gel

from activity of water is established. Kinetic dependences of change of degree of swelling of PAAm

granules in solutions of sucrose of different concentration are received. It is shown that at identical

activity of water cross-linked polyacrylamide differently swells in solutions of different substances. The

possible reasons of such behaviour are analysed.

Key words: polyacrylamide gel, swelling, kinetics.

Kavalerskaya Natalya E – Postgraduate

student, Chemistry Department, Moscow State

University, Moscow e-mail: nattrii@rambler.ru

Ferapontov Nikolay B. – Leading researcher,

Doctor of Scoence, Moscow State University,

Chemistry Department, Moscow