Question:
Which one of the following is the structure of polyacrylonitrile?
Which one of the following is the structure of polyacrylonitrile?
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In addition polymers, substituent of monomer appears on alternate carbon.
Updated On: Apr 23, 2026
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The Correct Option is B
Solution and Explanation
Concept:
Addition polymerisation of vinyl monomers.
Step 1: Monomer of PAN = CH$_2$=CH–CN (acrylonitrile).
Step 2: In addition polymerisation, double bond breaks and forms backbone.
Step 3: Polymer structure becomes [-CH$_2$–CH(CN)-]$_n$.
Step 4: CN group remains as side substituent on chain.
Conclusion:
Correct structure = option (B)
Step 1: Monomer of PAN = CH$_2$=CH–CN (acrylonitrile).
Step 2: In addition polymerisation, double bond breaks and forms backbone.
Step 3: Polymer structure becomes [-CH$_2$–CH(CN)-]$_n$.
Step 4: CN group remains as side substituent on chain.
Conclusion:
Correct structure = option (B)
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