Using words and
visuals, briefly describe the temperature dependence of stiffness
for the following classes of polymers....
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Mechanical Engineering
Using words andvisuals, briefly describe the temperature dependence of stiffnessfor the following classes of polymers. Explain how the structureand bonding in these materials contributes to the observedtemperature-dependent properties (structure-propertyconnections).
Amorphous andsemi-crystalline thermoplastics
Elastomers
Thermosets
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A Amorphous thermoplastics Amorphous thermoplastic resins consist of statistical oriented macromolecules generally optically transparent and mostly Brittle Exmple Polycarbonate polystyrene polyvinylchloride and polymethylmethacrylate Amorphous thermoplastic resins is below the glass temperature Tg molecular structure is frozen in a definite shape and the mechanical
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