Q31 of 57 Page 221

Why does cis-polyisoprene possess elastic property?

In cis-polyisoprene, various polymer chains are joined with each other by weak Vander Waals interactions and these polymer chains are coiled. Due to the presence of these weak forces the polymer can be stretched by applying force. The polymer returns to its original state as soon as the external force is removed, thus exhibiting elastic property.


More from this chapter

All 57 →
29

How is the following resin intermediate prepared and which polymer is formed by this monomer unit?


 30

To have practical applications why are cross-links required in rubber?

 32

What is the structural difference between HDP and LDP? How does the structure account for different behaviour and nature, hence the use of a polymer?

 33

What is the role of benzoyl peroxide in addition polymerisation of alkenes? Explain its mode of action with the help of an example.