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The monomer of Buna-S are :...

The monomer of Buna-S are :

A

Vinyl chloride and sulphur

B

Butadiene

C

Styrene and butadiene

D

Isoprene and butadiene

Text Solution

Verified by Experts

The correct Answer is:
C
Buna-S rubber is a polymer of buta-1, 3-diene and styrene
`nCH_(2)=CH-CH=CH_(2)+nC_(6)H_(5)CH=CH_(2) overset(overset("Addition")("Polymerization"))rarr [underset("Buna-S")(-CH_(2)-CH=CH)-CH_(2)-underset(underset(C_(6)H_(5))(|))(CH)-CH_(2)-]`
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Write the name and structure of the monomer of each of the following polymers : (i)Neoprene (ii) Buna-S (iii) Teflon

Rubber is a naturally occurring polymer, which is a linear polymer of isoprene. It can be easily deformed but regains its original shape after the stress is relieved. The properties of natural rubber can be modified and improved by process of vulcanization. It is mixed with 3 to 5% sulphur and heated at 373-423 K. This forms cross links through disulphide bonds (-S-S-) , which make rubber hard, tough with greater tensile strength. There are many different formulations of synthetic rubbers. These are copolymers in which one of the monomer is isoprene. Some common examples are neoprene rubber, Buna-S, Buna-N, etc. Name the monomers of synthetic rubber Buna-S.