Polymers Question 86

Question: Isotactic polypropylene polymer is one in which

Options:

A) the methyl groups present alternate regularly from one side to the other

B) all methyl groups are on one side of the extended chain. It is a highly crystalline, has high melting point and forms strong fibres

C) the methyl groups are distributed at random. It is a soft, elastic and rubbery material

D) None of the above

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Answer:

Correct Answer: B

Solution:

[b] Structure of the isotactic polypropylene is as