Question

Name the monomers of Buna-N.

Answer 1

Monomers:

The monomer is the smallest repeating part of a polymer having low molecular mass. An example of a monomer is- acrylonitrile, vinyl chloride, etc.

• Buna -N is a synthetic rubber and it is obtained through the polymerization of buta-1,3-diene, and acrylonitrile in the presence of a peroxide catalyst such as benzoyl peroxide.
• The chemical structure of buta-1,3-diene is: ${\mathrm{CH}}_2=\mathrm{CH}—\mathrm{CH}={\mathrm{CH}}_2$.
• The chemical structure of Acrylonitrile is: ${\mathrm{CH}}_2=\mathrm{CH}—\mathrm{C}\equiv \mathrm{N}$
• Therefore, buta-1,3-diene and prop-2-ene-1-nitrile (acrylonitrile) are the monomers of Buna-N.