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Chapter 27: Q21P (page 1205)

Propose a mechanism for the formation of Melmac.

Short Answer

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The mechanism for the formation of Melmac is shown below.

Step by step solution

01

Melmac

Melmac falls under the category of thermosetting polymers and is created from melamine and formaldehyde. It is colorless and can be used for several lightweight dishes and counter surfaces.

02

Predicting the mechanism for the formation of Melmac

Melmac is formed from melamine and formaldehyde. A protonated imine is formed between the amino group and formaldehyde. Then, it reacts with the amino group of melamine, and thus, the linkage is formed.

The mechanism for the formation of Melmac is given below.

Formation of Melmac

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Most popular questions from this chapter

Bakelite, a durable plastic used for the casing of early radios and TVs, was the first of the thermosetting polymers. It is a highly cross-linked polymer formed from the acid-catalyzed polymerization of phenol and formaldehyde. Because it is much darker than Melmac, Bakelite鈥檚 range of colors is limited. Propose a structure for Bakelite.

What happens to polyester slacks if aqueous NaOH is spilled on them?

Draw a segment of a polymer (containing three monomers) that forms from the anionic polymerization of the compound shown below.

Draw a short segment of the polymer formed from cationic polymerization of 3,3-dimethyloxacyclobutane.

The following two compounds form a 1: 1 alternating copolymer. No initiator is needed for the polymerization. Propose a mechanism for the formation of the copolymer.
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