Temperature sweeps were performed from 25 C to 95 C at a
heating rate of 1.0 C/min and a strain amplitude inside the linear
viscoelastic response over the whole temperature range (0.0005).
The strain amplitude was determined by means of stress sweeps
carried out at 25 C and 95 C. Vaseline oil was applied to the edges
of the samples to prevent the sample drying. The mechanical
spectra were recorded from 0.01 to 10 Hz at 25 C in separate tests.
The storage modulus (G0), the loss modulus (G00) and tan(d) were
recorded. Two measurements of each formulation were taken.