RHEOLOGICAL EQUATIONS OF STATE OF LINEAR
POLYMERS AND THEIR MIXTURES

Yu. A. Altukhov, A. S. Gusev, and G. V. Pyshnograi

UDC 535.329:541.64

A rheological governing relation for the solutions and 
melts of linear polymers has been obtained based on the microstructural 
ideas of the dynamics of a polymer chain. A relation for taking into 
account the influence of the polydispersity of polymers on the properties 
of the mixture has been proposed and the components of the complex 
shear modulus - the elastic modulus and the loss modulus - 
have been calculated. The performed comparison of the theoretical 
results obtained and the experimental data for the mixtures of two 
samples of polystyrene in different ratios demonstrates satisfactory 
agreement of theory and experiment.

I. I. Polzunov Altai State Technical University, Barnaul, 
Russia; email: pgv@agtu.secna.ru; yaa@agtu.secna.ru. Translated from 
Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 3, pp. 64-67, May-June, 
2003. Original article submitted December 17, 2002.