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Polymers
How is phenol-formaldehyde resin prepared? How can it be converted into bakelite?
When p-hydroxymethyl phenols react with phenol to form compounds, having rings joined to each other through -CH2 groups. This the know as Novolac.
Novolac on heating with formaldehyde undergoes cross-linking to form an infusible solid mass called bakelite.
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Explain the terms polymer and monomer.
How do you explain the functionality of a monomer?
Define the term polymerization.
Is (NH—CHR—CO)n, a homopolymer or copolymer?
What is condensation polymer?
Give one example each of (i) Addition polymer (ii) Condensation polymer.
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