Molecular origin of constants in the theory of rubber-like elasticity considering network chains steric interaction

Abstract

Abstro — A theory of rubber-like elasticity is suggested, ed on the ohanne]. model simulating the network chains steric interaction. The theory describes well the stress— strain dependences for various types of deformation. In particular, for an uniaxial tension the theoretical depen— dences are straightened in Mooney—Rivlin coordinates. The two elastic constants of the theory are expressed in terms of the network moleoular parameters. Dependences of these constants on the network density, temperature, swelling ratio and chemical structure of a polymer are discussed.