Question

Name the monomers present in the following polymers:
A.Bakelite
B.Buna-N

Answer 1

Polymers are high molecular mass macromolecules, which consist of repeating structural units derived from monomers. Polymers have a high molecular mass. In a polymer, different monomer units are joined by solid covalent bonds.

Complete step by step answer:
A. Bakelite is a buildup polymer of phenol and formaldehyde. Bakelite is broadly utilized for making shaped items. It was the main plastic produced using engineered segments.

It is a thermosetting polymer.
The polymers (particularly plastics) that once shaped can't be distorted or keen on warming are known as thermosetting polymers.

B. Buna – N (Nitrile elastic)- It is acquired by polymerization of ${ 1,3-butadiene }$ and acrylonitrile within the sight of a peroxide catalyst. It is utilized for making oil seals, manufacture of hoses and tank linings.

It is a thermoplastic polymer.
Thermoplastic polymer: Those plastics which can be flexible on warming over a specific temperature and adjust another shape on cooling are known as a thermoplastic polymer.

They, for the most part, have a high atomic weight.

Additional information :
Uses of Bakelite:
Because of its excellent insulating properties, it is used in radio, telephone casings etc.
It is also used in other products like toys, jewellery, kitchenware etc.
It is a kind of plastic which once moulded cannot be moulded again.

Note: The possibility of making a mistake is that you may confuse between thermosetting and thermoplastic polymers. Thermoplastic polymers are linear with no-cross linkages while thermosetting polymers have cross-linkages.