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  • (i) What is the role of Sulphur in the vulcanization of rubber? (ii) Identify the monomers in the following polymer:     </p

(i) What is the role of Sulphur in the vulcanization of rubber?

(ii) Identify the monomers in the following polymer:

    

(iii) Arrange the following polymer in the increasing order of their intermolecular forces:

    Terylene, Polythene, Neoprene

 

 

 

 
 
 
 
 

Answers (1)

(i) Vulcanization of rubber consists of heating a mixture of raw rubber with sulphur at temperature of 373K - 415K;  sulphur forms cross links at the reactive sites of double bonds and thus gets stiffened.

(ii) Monomer of 

are HO-CH_{2}-CH_{2}-OH   and 

(iii) increasing order of their intermolecular forces - 

 Neoprene<Polythene< Terylene

Posted by

Sumit Saini

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