The polymer obtained by step-growth polymerization of 2-aminoethanoic acid and 6- aminohexanoic acid is called ....................

Answer

To solve the question regarding the polymer obtained from the step-growth polymerization of 2-aminoethanoic acid and 6-aminohexanoic acid, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Compounds**:
- The first compound is 2-aminoethanoic acid, which is commonly known as glycine. Its structure can be represented as NH2-CH2-COOH.
- The second compound is 6-aminohexanoic acid, which is also known as amino caproic acid. Its structure is NH2-(CH2)4-COOH.

2. **Understand Step-Growth Polymerization**:
- Step-growth polymerization involves the reaction between monomers that contain functional groups. In this case, the amino groups (-NH2) and carboxylic acid groups (-COOH) will react to form amide linkages.

3. **Determine the Polymer Formed**:
- When glycine (2-aminoethanoic acid) and amino caproic acid (6-aminohexanoic acid) undergo step-growth polymerization, they will form a polymer known as nylon 2, nylon 6.
- The "2" and "6" refer to the number of carbon atoms in the respective monomers involved in the polymerization.

4. **Conclude the Answer**:
- Therefore, the polymer obtained from the step-growth polymerization of 2-aminoethanoic acid and 6-aminohexanoic acid is called **nylon 2, nylon 6**.

### Final Answer:
The polymer obtained by step-growth polymerization of 2-aminoethanoic acid and 6-aminohexanoic acid is called **nylon 2, nylon 6**.

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