Quiz 9 Flashcards
1
Q
What is copolymer?
A
Combination of more than one monomer.
2
Q
During the tensile test, a polymer only show elastic deformation with no plastic deformation. This polymer is called:
A
Elastomer
3
Q
What is the effect of crystallinity on the glass transition temperature of polymers?
A
Increases the glass transition.
4
Q
What is the simple definition of glass transition temperature?
A
The temperature at which the polymer transforms from rigid solid to viscous liquid.
5
Q
Which of the following factors can give rise to the strength of polymers?
A
Increasing molecular weight.
Introduction of polar groups in polymer molecules.
Introduction of hydrogen bonding in the polymer chains.
