Question

Regarding cross-linked or network polymers, which of the following statements is incorrect ?

• A. They contain strong covalent bonds in their polymer chains.
• B. They contain covalent bonds between various linear polymer chains.
• C. Examples are bakelite and melamine
• D. They are formed from bi- and tri-functional monomers

Answer 1

Answer: (A)

They contain strong covalent bonds in their polymer chains.

Answer 2

Cross linked or network polymers are formed from bi-functional and tri-functional monomers and contain strong covalent bonds between various linear polymer chains, e.g. bakelite, melamine etc. Option $(1)$ is not related to cross-linking.