Abstract
Abstract In a previous work [1], using a binary blending rule, we had developed a numerical method to calculate the polymer molecular weight from the relaxation time spectrum of the terminal zone of stress relaxation modulus G(t). In this work, we separated the terminal zone of storage modulus G'(ω) from plateau modulus Gno and calculated the relaxation time spectrum H by using the second approximation formulas of Tschoegl [2]. The polymer molecular weight and molecular weight distribution was then obtained from H by using the same numerical method as was developed in the previous work [1]. The results calculated by this method are in good agreement with those measured from membrane osmometry, light scattering, GPC, etc.
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