Multiple choice

Which of the following pairs of polymers is made from step growth polymerisation?

  1. Dacron, Nylon 6,6

  2. PAN, LDPE

  3. Dacron, PAN

  4. Nylon 6,6, Teflon

  5. Teflon, Dacron
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A Correct answer
Explanation

Step growth polymerisation - This type of polymerisation generally involves a repetitive condensation reaction between two bi-functional monomers. These polycondensation reactions may result in the loss of some simple molecules as water, alcohol, etc., and lead to the formation of high molecular mass condensation polymers. Examples are - the formation of terylene or dacron by the interaction of ethylene glycol and terephthalic acid, the condensation polymerisation of hexamethylenediamine with adipic acid under high pressure and at high temperature (Nylon 6,6), etc. Hence, both Dacron and Nylon 6,6 are made from step growth polymerisation.

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