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Phenol and fomaldehyde undergo condensat...

Phenol and fomaldehyde undergo condensation to give a polymar (A) which on heating with formaldehyde gives a thermosetting polymer (B) Name the polymers. Write the reaction involved in the formation of (A) what is the structural difference between two polymers?

Text Solution

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The polymer (A) is a linear chain polymers known as Novolac white the polymer (B) is a cross linked polymer called Bakelite. For their structures, consult section 6
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