Question

Which of the following is not the addition homopolymer?

• A. PAN
• B. PVC
• C. Buna-S
• D. Teflon

Answer 1

The correct option is C Buna-S

Addition polymer are formed by the repeated addition of monomer molecules possessing double or triple bonds. The addition polymer formed by the polymerisation of a single monomeric species are know as homopolymer, e.g., polyethene. The polymer made by addition polymerisation from two different monomers are termed as copolymer e.g. Buna-S

Tefton $\to$ homopolymer of tetra fluoroethylene monomer unit.
Poly vinyl chloride $\to$ homo polymer of vinyl chloride monomer unit
Poly acrylonitrile $\to$ homopolymer of acrylonitrile monomer unit