Increases, Decreases, Increases, Increases, Increases, Increases, Increases
A semi-crystalline polymer's tensile modulus depends on the following variables:
Molecular Weight: As the polymer's molecular weight rises, it does as well.
Degree of crystallinity: As the degree of crystallinity of a semi-crystalline polymer grows, so does its tensile strength.
Drawing-induced deformation: Drawing-induced deformation of a polymer results in a finely oriented chain structure, and the increased secondary interchain bonding structure increases the polymer's tensile strength.
The tensile strength of the material also increases as a result of annealing an undeformed substance.
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