Abstract
A molecular network theory developed by the author (Takano, Y., Polymer J., 6, 61 (1974)) is applicable to qualitative description of various nonlinear viscoelastic phenomena of concentrated polymer systems. The theory is applied to the calculation of the elastic recoil and the tensile viscosity of the systems. The result of the elastic recoil is expressed by an integral equation. The value of tensile viscosity gradually decreases with the rate of stretching. The Trouton's formula is satisfied in the limit of zero values of the shear and the stretching rates.
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Schedule a callMore From: Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan)
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