Experimental parameter of interest

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Reference no: EM13948279

1. (a) Contrast the manner in which stress relaxation and viscoelastic creep tests are conducted.

(b) For each of these tests, cite the experimental parameter of interest and how it is determined.

2. Make two schematic plots of the logarithm of relaxation modulus versus temperature for an amorphous polymer (curve C in Figure 15.8).

(a) On one of these plots demonstrate how the behavior changes with increasing molec- ular weight. Semicrystalline polymer and why:

(a) Molecular weight

(b) Degree of crystallinity

(c) Deformation by drawing

(d) Annealing of an undeformed material

Reference no: EM13948279

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