Name the monomer and the type of polymerisation that takes place when PTFE is formed.

Addition polymerisation is also called chain growth polymerization. Alkenes are treated with small amounts of initiators. The chain grows by joining the reactive end of growing chain to double bond of monomer. Reactive intermediates such as free radicals, carbocation's or carbanion's are formed. An example of addition polymerisation is the polymerisation of tetrafluoroethylene (monomer) to form Teflon (polymer). So, the monomer used for the preparation of Teflon is tetrafluoroethylene, F 2 C = CF 2 and the polymerisation process that takes place when PTFE is formed is addition polymerisation. nCF 2 = CF 2 → polymerisation [ − CF 2 − CF 2 − ] n

Write the name of the monomers for nylon- 2 -nylon- 6 polymer?

Monomers of nylon- 2 -nylon- 6 are glycine and amino caproic acid. It belongs to biodegradable copolymer, synthetic polymer category.

Write the name of the monomers for Bakelite polymer?

Bakelite is a polymer formed by the polymerization reaction of phenol and formaldehyde. Thus, the monomers of Bakelite are phenol and formaldehyde. This is a thermosetting polymer.