The synthesis of several important industrial resins relies on the high reactivity of formaldehyde () as a cross-linking agent. Which of the following commercial polymers require formaldehyde as an es

Question

The synthesis of several important industrial resins relies on the high reactivity of formaldehyde ($HCHO$) as a cross-linking agent. Which of the following commercial polymers require formaldehyde as an essential monomeric precursor?

Prashant Kotian · Accepted Answer

Correct answer: A,B,C. Bakelite and its linear prepolymer Novolac are synthesized from phenol and formaldehyde. Melamine-formaldehyde resin is synthesized from melamine and formaldehyde. Glyptal, however, is a polyester synthesized from ethylene glycol and phthalic acid, and does not require formaldehyde.

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