Question

Which of the following sets contain only addition homopolymers?

• A. Polythene, Natural rubber, Cellulose
• B. Nylon, Polyester, Melamine resin
• C. Teflon, Bakelite, Orlon
• D. Neoprene, PVC, Polythene

Answer 1

Answer: (A), (D)

Polythene, Natural rubber, Cellulose
Neoprene, PVC, Polythene

On the basis of mode of polymerization, polymers can be classified into two types:-

[1] Addition polymer

[2] Condensation polymer

Addition polymers are formed by the repeated addition of monomer molecules possessing double or triple bonds. However, the addition polymers formed by the polymerization of a single monomeric species are known as homopolymers.

Example= Polythene: Made from the polymerization of ethene

Natural rubber: Made from the polymerization of cis-1,4-polyisoprene

Cellulose: Made from the polymerization of $\beta$ D- glucose

Neoprene: Made from the polymerization of chloroprene

PVC: Made from the polymerization of vinyl chloride