Rasika Prabhu, Rasmus Klitkou, Grigori A. Medvedev and James M. Caruthers A critical analysis of the effect of crosslinking on the linear viscoelastic behavior of styrene–butadiene rubber and other elastomers Journal of Polymer Science Part B: Polymer Physics 51
Time–temperature superposition (TTS) is used to analyze linear viscoelastic behavior of elastomer systems with varying degrees of crosslinking. Linear viscoelastic behavior in dynamic shear and tensile creep at temperatures from −30 to 70 °C is measured for SBR elastomer cured with dicumyl peroxide to crosslinking densities between 0 and 23.5×10−5 mol/cm3. To achieve the TTS of the storage, loss, and δ isotherms in the lightly crosslinked SBR, an anomalous vertical shift is required in the narrow temperature range from 10 to 30 °C.
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