Which of the following is an example of thermosetting polymer ?
A
Sealing Wax
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B
Nylon - 6,6
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C
PVC
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D
Bakelite
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Solution
The correct option is D Bakelite THERMOSETTING POLYMER - These polymers are cross linked or heavily branched molecules, which on heating undergo extensive cross linking in moulds & again become infusible.
BAKELITE - It is an example of thermosetting polymer. It is formed from an elimination reaction of phenol with formaldehyde.