Qstnid -Ii-14- How Does The Presence Of Double Bonds In Rubber Molecules Influence Their Structure And Reactivity? - 06: Polymers - Neet-xii-chemistry

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NEET-XII-Chemistry

06: Polymers

page 3

Qstn# II-14 Prvs-Qstn Next-Qstn

#14
How does the presence of double bonds in rubber molecules influence their

structure and reactivity?

Ans : Natural rubber is a linear cis-polyisoprene in which the double bonds are present between C₂ and C₃ of the isoprene units.

Because of this cis-configuration, intermolecular interactions between the various strands of isoprene are quite weak. As a result, various strands in natural rubber are arranged randomly. Hence, it shows elasticity.