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Which statement is correct regarding the structure of polymers? a. Increasing the degree of crystallinity generally increases polymer strength, elastic modulus, and ductility in semi-crystalline polymers b. Amorphous & semi-crystalline polymers have lower strength than crystalline polymers c. Semi-crystalline polymers are heat treated to increase the crystallinity and improve polymer strength d. The tendency of a polymer to crystallize increases with increasing molecular weight e. Strength increases at higher temperatures as the material softens f. It is desirable to have a ductile-to-brittle transition temperature below room temperature g. Degree of crystallinity and elongation at break have an inverse relationship

Which statement is correct regarding the structure of polymers? a. Increasing the degree of crystallinity generally increases polymer strength, elastic modulus, and ductility in semi-crystalline polymers b. Amorphous & semi-crystalline polymers have lower strength than crystalline polymers c. Semi-crystalline polymers are heat treated to increase the crystallinity and improve polymer strength d. The tendency of a polymer to crystallize increases with increasing molecular weight e. Strength increases at higher temperatures as the material softens f. It is desirable to have a ductile-to-brittle transition temperature below room temperature g. Degree of crystallinity and elongation at break have an inverse relationship

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Which statement is correct regarding the structure of polymers?

a. Increasing the degree of crystallinity generally increases polymer strength, elastic modulus, and ductility in semi-crystalline polymers

b. Amorphous & semi-crystalline polymers have lower strength than crystalline polymers

c. Semi-crystalline polymers are heat treated to increase the crystallinity and improve polymer strength

d. The tendency of a polymer to crystallize increases with increasing molecular weight

e. Strength increases at higher temperatures as the material softens

f. It is desirable to have a ductile-to-brittle transition temperature below room temperature

g. Degree of crystallinity and elongation at break have an inverse relationship

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