Question

Which one of the following is not a condensation polymer?
A. Dacron
B. Neoprene
C. Melamine
D. Glyptal

Answer 1

Polymers are substances which are made up of very large molecules. These are composed of repeating subunits. There exist two types of polymers: Natural and synthetic. Natural polymers are present in nature whereas synthetic polymers are man made polymers.

Complete step by step answer: We know polymers are the substances which are made up of very large and repeating molecules. Condensation polymers are the polymers which are formed through condensation reaction. Condensation reaction is the reaction in which two molecules combine together leaving behind a water or methanol molecule. In this question we have to find out the polymer which is not a condensation polymer that is not formed through a condensation reaction.
Dacron is a condensation polymer which is formed of ethylene glycol and terephthalic acid. Its repeating subunit is ${C_{10}}{H_8}{O_4}$ . In this question we have to find a polymer which is not a condensation polymer. But it is a condensation polymer. This means it is not our answer.
Neoprene is not a condensation polymer. Its monomer is chloroprene. It is an additional polymer. Additional polymers are made by joining monomers. These polymers do not yield any other product during formation. In this question we have to find the polymer which is not condensation polymer and neoprene is not condensation polymer. This means answer is option B that is Neoprene.

So, the correct answer is “Option B”.

Note: Linear polymers are the simplest polymers. These are not divided whereas branched polymers consist of a main chain with one more substituent side chain or branches. Long chain branches increase the strength of polymer.