Q.14 Which of the following polymers are condensation polymers?
(a) Bakelite
(b) Teflon
(C) Butyl rubber
(d) Melamine formaldehyde resin
(a, d)
Condensation polymers are formed by repeated condensation reaction between two bifunctional or trifunctional monomer units usually with the elimination of small molecules like water, alcohol, ammonia, , HCI
e.g
(i) Bakelite is obtained by polymerization of phenol and formaldehyde.
(il) Melamine - Formaldehyde-resin
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