Question

Discuss the preparation and uses of any two commercial polymers.

Answer 1

Nylon

Nylon is a synthetic polymer prepared in labs and produced by industries for its commercial importance. It is commonly used in the textile and fabric industry. Nylon comes under the family of linear polyamides.

Nylon 6 and nylon 6,6 are 2 commonly used types of nylon. In fact, Nylon 6,6 (widely used as fibres) is made from adipic acid and hexamethylene diamine.They have a compact molecular structure exhibiting excellent abrasion resistance. The monomers are joined by hydrogen bonding. Nylon’s characteristics which make it such a valuable material can be attributed to its strength, lustre, elasticity and resistance to damage by oil and chemicals.

Bakelite

Bakelite is one of the oldest polymers that was synthesized by man. It is a thermosetting polymer and has high strength and retains its shape after moulding. It is one of the first polymer/plastic created in a laboratory. The polymer is formed by condensation of formaldehyde with phenol. Its chemical formula is (C6H6O·CH2O)n.

Bakelite has a high resistance to heat and chemicals and also has a low electrical conductivity due to which it is most commonly used for making electrical switches  Bakelite is also used to make the handles of a variety of utensils. It is one of the most important and extensively used polymers for making components and parts of various items. Other uses of this polymer are seen in pipe stems.


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