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JEE Main20205 Sep 2020Evening ShiftChemistryPolymersActual

Which one of the following polymers is not obtained by condensation polymerisation ?

Options

  1. ANylon 6, 6
  2. BBuna – N
  3. CBakelite
  4. DNylon 6

Correct answer

B. Buna – N

Step-by-step solution

The polymers made by addition polymerisation from two different monomers are termed as copolymers, e.g., Buna-S, Buna-N, etc. Bakelite is a condensation polymer of formaldehyde and phenol . In practice, the phenol and formaldehyde are first polymerized to a small extent by using the proper choice of catalyst and temperature. Nylon is also condensation polymer.

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