Polymers Question 27
Question: The degree of crystallinity of which of the following is highest
Options:
A) Atactic polyvinylchloride
B) Isotactic polyvinylchloride
C) Syndiotactic polyvinylchloride
D) All of these
Show Answer
Answer:
Correct Answer: C
Solution:
Syndiotactic polyvinylchloride $ ( -CH_2-\underset{Cl}{\mathop{\underset{|}{\mathop{CH}}}}-CH_2-\overset{Cl}{\mathop{\overset{|}{\mathop{CH}}}}-CH_2-\underset{Cl}{\mathop{\underset{|}{\mathop{CH}}}}-CH_2-\overset{Cl}{\mathop{\overset{|}{\mathop{CH}}}} . $
$ -{{. CH_2-\underset{Cl}{\mathop{\underset{|}{\mathop{CH}}-}} )} _{n}} $ In this arrangement the chlorine atoms are alternately arranged. The polymer is stereoregular and has high crystallinity.
BETA
