Nylon 6,6 is obained by condensation polymerisation of

Options

A. adipic acid and ethylene glycol
B. adipic and hexamethylenediamine
C. terephtalic acid and ethylene glycol
D. adipic acid and phenol.

Answer

To determine the components involved in the condensation polymerization that leads to the formation of Nylon 6,6, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Nylon 6,6**:
- Nylon 6,6 is a type of synthetic polymer that is part of the polyamide family. The name "6,6" indicates that the polymer is made from two monomers, each containing six carbon atoms.

2. **Identifying the Monomers**:
- The two monomers that are used to synthesize Nylon 6,6 are **adipic acid** and **hexamethylenediamine**.
- **Adipic acid** has the formula:
\[ \text{HOOC-(CH}_2)_4\text{-COOH} \]
- **Hexamethylenediamine** has the formula:
\[ \text{H}_2\text{N-(CH}_2)_6\text{-NH}_2 \]

3. **Condensation Polymerization Process**:
- In condensation polymerization, monomers react to form a polymer while eliminating small molecules, typically water (H2O).
- When adipic acid and hexamethylenediamine react, they form amide linkages (-CO-NH-) and release water molecules as a byproduct.

4. **Formation of Nylon 6,6**:
- The reaction can be summarized as follows:
\[ \text{Adipic Acid} + \text{Hexamethylenediamine} \rightarrow \text{Nylon 6,6} + \text{H}_2\text{O} \]
- The repeating unit of Nylon 6,6 consists of the structure formed by the combination of these two monomers.

5. **Conclusion**:
- Therefore, Nylon 6,6 is obtained by the condensation polymerization of **adipic acid** and **hexamethylenediamine**.

### Final Answer:
Nylon 6,6 is obtained by condensation polymerization of **adipic acid** and **hexamethylenediamine**.

---