Question

Write chemical reactions to prepare the following polymers.
(i) Teflon.
(ii) Nylon-6
(iii) Dextron.

Answer 1

We know that a polymer may be a substance or material consisting of very large molecules or macromolecules, composed of the many repeating subunits. We have to remember that the polymers are also available in nature which is found in plants and animals.

Complete step by step answer:
We know Nylon-6 is also known as polycaprolactone which can be prepared from caprolacttam.It is synthesized by ring opening polymerization of caprolactam. There are six carbon atoms in the caprolactam structure thus we get the name Nylon-6.
The chemical reaction for the preparation of Nylon-6 is,

We must remember that the Teflon is really made from a compound named polytetrafluoroethylene $\left( {PTFE} \right)$ which may be a synthetic fluoropolymer which has been under use for various purposes. The compound is produced by tetrafluoroethylene undergoing radical polymerization. The equation for the method is,

Since it's necessary to possess a special apparatus necessary for preventing hot spots during the method of polymerization from triggering side reactions that are dangerous because of the very fact that tetrafluoroethylene could decompose to carbon and tetrafluoromethane.
Dextron may be a polylactic acid polyglycolic acid polymer. The monomers used are carboxylic acid and glycolic acid. It is a copolymer and has ester linkage. It’s used as a friction modifier. it's added to lubricants to scale back surface friction.

Note: We must remember that the polymers that are formed by the polymerization of monomers with the elimination of small molecules like ammonia, water, hydrochloric acid, and methanol are known as condensed polymers. Nylon-6 is an example of condensed polymers.Polyester may be a group of polymers so as to contain the ester functional group in their main chain. Polycot may be a fabric which may be a combination of cotton and polyester fibers.