Which of the following polymers soften when heated and harden when cooled?
-
A.
Network polymers
-
B.
Thermoplastic polymers
-
C.
Thermosetting polymers
-
D.
Crosslinked polymers
Correct Answer:
B. Thermoplastic polymers
Explanation:
Thermoplastic polymers are materials that become pliable or liquid when reaching specific temperatures and solidify once they are cooled. This reversible physical transition occurs because the polymer chains are held together by relatively weak intermolecular forces that break apart with heat and reform upon cooling. Unlike thermosetting plastics, which undergo a permanent chemical change and cannot be remelted, thermoplastics can be reshaped and recycled multiple times without losing their fundamental properties.
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.