Which of the following polymers, need atleast one diene monomer for their preparation?


Now first let’s take a look to what diene means, ‘DIENE’ is a molecule containing 2 carbon-carbon double bonds. So now when we look into the preparation of each of the above options we need to search for carbon-carbon double bond.

Preparation of Dacron:


Preparation of Buna-S:



Preparation of Neoprene:


Preparation of Novolac: Option ii and iii, with Buna-S and Neoprene is the answer for the above question.


Explanation: Now first let’s take a look to what diene means, ‘DIENE’ is a molecule containing 2 carbon-carbon double bonds. So now when we look into the preparation of each of the above options we need to search for carbon-carbon double bond.


Preparation of Dacron:


Preparation of Buna-S:



Preparation of Neoprene:


Preparation of Novolac:


Now when we observe the above reactions we find carbon carbon double bond only in Buna-S and neoprene, meaning that they have diene monomer for their preparation.



Now when we observe the above reactions we find carbon carbon double bond only in Buna-S and neoprene, meaning that they have diene monomer for their preparation.

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