How do double bonds in rubber molecules influence their structure and – InterviewSolution

1.	How do double bonds in rubber molecules influence their structure and reactivity ?
Answer» SOLUTION :Natural rubber is cis-polyisoprene obtained by 1, 4-polymerization of isoprene units. This polymer has double bonds between `C_2` and `C_3` of each isoprene unit. These cis-bonds donot allow the polymer chains to COME CLOSER. Hence, intermolecular forces are QUITE WEAK. Consequently, natural rubber, i.e., cis- polyisoprene has a randomly coiled structure and hence shows elasticity.

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