Melamine polymer is a copolymer of

Options

A. melamine and acetaldehye
B. melamine and formaldehyde
C. phenol and formaldehyde
D. none of the above

Answer

To determine the monomer units of the melamine polymer, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Copolymer**:
- A copolymer is a polymer that is made from two different types of monomer units.

2. **Identify the Monomers in Melamine Polymer**:
- The melamine polymer is specifically known to be formed from melamine and another compound.

3. **Determine the Structure of Melamine**:
- Melamine is a nitrogen-rich compound with the chemical formula C3H6N6. Its structure consists of a triazine ring with amino groups attached.

4. **Identify the Second Monomer**:
- The second monomer that reacts with melamine to form the melamine polymer is formaldehyde, which has the chemical formula HCHO.

5. **Formulate the Copolymer**:
- The reaction between melamine and formaldehyde leads to the formation of a cross-linked network, which is characteristic of melamine-formaldehyde resin.

6. **Conclusion**:
- Therefore, the melamine polymer is a copolymer of melamine and formaldehyde.

### Final Answer:
The melamine polymer is a copolymer of **melamine and formaldehyde**.

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