Abstract
Abstract A numeric method for calculating the molecular weight (MW) and molecular weight distribution (MWD) from the terminal zone of viscoelasticity of narrow distribution linear polymers had been developed by one of the authors in previous work. In this work a modification of our previous method, by considering the shift factor, for calculating the polymer molecular weight and molecular weight distribution from the terminal zone of the storage modulus G' (ω) of a broad molecular weight distribution linear polymer is presented. Two narrow distribution polystyrene and one broad distribution polystyrene samples were used as a demonstration to calculate the molecular weight distribution. Good agreement between the results calculated from our method and those obtained from GPC measurements was found.
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