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Which of the following is made by reacting phenol and formaldehyde?

Which of the following is made by reacting phenol and formaldehyde? Correct Answer Bakelite

Concept:

  • The process in which large no. of monomer combine to form heavy molecular weight polymer is called polymerisation.

Explanation:

  • Bakelite is a polymer of phenol and formaldehyde and is the oldest synthetic polymer.
  • Bakelite is a thermosetting polymer
  • Phenol and Formaldehyde react in presence of acid or base catalyst to form moulding powder in two stages
  • In the third stages various articles are shaped from Moulding powder by putting it in a appropriate moulds and heating at high temperature and at a high pressure.
  • During third stage many crosslinked are formed which results in formation of rigid polymeric materials called as Bakelite
  • Bakelite is insoluble and infusible and has high tensile strength.
  • Also serves as substitute for glass

Reaction:

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