Question

Which of the following polymers can be made by condensation polymerisation reaction?
(A) Dacron
(B) Nylon – 6,6
(C) Bakelite
(D) Polyethylene

Answer 1

Hint :Polymerization is a chemical reaction in which relatively tiny molecules, known as monomers, unite to form a very big chainlike or network molecule, known as a polymer. The monomer molecules might be identical or might represent two, three, or even more distinct compounds.

Complete Step By Step Answer:
The production of the polymer happens when some tiny molecules are lost as byproducts of the process when molecules are linked together in condensation polymerization. Water or hydrogen chloride are possible byproducts. Condensation polymers include polyamides.
As an illustration
They are nylons, which are synthetic fibres. Between these polymers is an amide bond. Polyamide is formed via condensation polymerization of di-amines with di-carboxylic acid, as well as amino acids and their lactams. Nylon 66 is made by condensation polymerization hexamethylenediamine with adipic acid at high pressure and temperature.
Repeated condensation reactions between two separate bi-functional or tri-functional monomeric components produce condensation polymers. Small molecules such as water, alcohol, hydrogen chloride, and others are eliminated during these polymerisation events.
Condensation polymerization is used to make Dacron, Nylon-6.6, and Bakelite. Polyethylene, on the other hand, is created when a double bond is broken and there is no molecular elimination.
Hence option A, B, C are correct.

Note :
Cellulose, polypeptide chains in proteins, and poly($\beta $-hydroxybutyric acid), a polyester generated in vast quantities by some soil and water microorganisms, are examples of naturally occurring condensation polymers. Condensation polymers take longer to produce than additional polymers, and they typically require heat. They also have a lower molecular weight. In the late phases of polymerization, the terminal functional groups on a chain remain active, allowing groups of shorter chains to join form larger chains.