Question

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

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

Answer 1

The correct option is D They contain strong covalent bonds in their polymer chains.

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 (4) is not related to cross-linking.