Question

Differentiate the following pair of polymers based on the property mentioned against each.(i) Novolac and Bakelite (structure)
(ii) Buna-s and Terylene (intermolecular forces of attraction)

Answer 1

novolac is a linear polymer and bakelite is cross linked polymer
buna s
is additional copolymer
terylene is condensed and step growth co polymer and linear polymer

Answer 2

i) Novolac is a linear polymer while bakelite is a cross linked polymer

ii) on the basis of intermolecular forces Buna-S and terylene are classified as elastomers and fibres respectively