5. Draw a graph showing the relaxation modulus as a function of the temperature for an amorphous thermoplastic polymer and for a semi- crystalline thermoplastic polymer. Draw the two curves on the same graph. Position the temperature along the horizontal axis and the relaxation modulus for the vertical axis. Identify the glass transition temperature Tg and the melting temperature Tf . Assume that the glass transition. temperature is the same for both polymers. Briefly discuss your graph. Note you are not requested to provide numerical values. (3 points)