General Science - Chemistry
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Q.

Butyl rubber is made by cationic polymerisation of:

 A.

Isobutylene with isoprene

 B.

Allene and propane

 C.

Isobutylene and allene

 D.

Isopropene and propane

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Solution:
Option(A) is correct

Butyl rubber is a synthetic rubber, a copolymer of isobutylene with isoprene.

Butyl rubber is impermeable to air and used in many applications requiring an airtight rubber. Butyl rubber has excellent impermeability, and the long polyisobutylene segments of its polymer chains give it good flex properties.


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