Name the polymers used in laminated sheets and give the name of the monomeric units involved in its formation.
i) Urea
ii) Formaldehyde.
Name of polymer used in laminating sheets and give the name of monomeric units involved in its formation.
Phenol and formaldehyde undergo condensation to give a polymer (A) which on heating with formaldehyde gives a thermosetting polymer (B). Name the polymers. Write the reactions involved in the formation of (A). What is the structural difference between two polymers?