Question

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

(1) They contain covalent bonds between various linear polymer chains. 

(2) They are formed from bi-and tri-functional monomers. 

(3) Examples are bakelite and melamine. 

(4) They contain strong covalent bonds in their polymer chains.

Answer 1

(4) Cross-linked or network polymers are usually formed from bi-functional & tri-functional monomers and contains strong covalent bond between various linear polymer chains like Melamine, Bakelite etc.