Fig. 2: Experimental shear and elongational rheological data of PS pom-pom model systems. | Nature Communications

Fig. 2: Experimental shear and elongational rheological data of PS pom-pom model systems.

From: Predicting maximum strain hardening factor in elongational flow of branched pom-pom polymers from polymer architecture

Fig. 2

a Mastercurves of three pom-poms of the 24k-series. b Phase angle \(\delta\) as a function of the angular frequency \({a}_{T}\omega\). c Tensile stress growth coefficient \({\eta }_{E}^{+}\) shown as a function of time of the 24k-series for selected strain rates. Dashed lines show the prediction of the Doi-Edwards model to illustrate the strain hardening factor \({SHF}\). d Tensile stress growth coefficient \({\eta }_{E}^{+}\) shown as a function of time for the pom-pom 400k-2x12-23k for all measured strain rates from 0.000832 to 10 s−1. All figures are shown at a reference temperature of \({T}_{{ref}}\) = 140 °C.

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