Which of the following polymer is not synthesized from acidic monomer ?

Options

A. Nylon - 6, 6
B. Dacron
C. Bakelite
D. Teflon

Answer

To determine which polymer is not synthesized from an acidic monomer, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Monomers of Each Polymer:**
- **Option 1: Nylon 66**
- Monomers: Hexamethylene diamine (NH2(CH2)6NH2) and Adipic acid (HOOC(CH2)4COOH).
- Adipic acid is an acidic monomer.

- **Option 2: Dacron (Polyester)**
- Monomers: Ethylene glycol (HOCH2CH2OH) and Terephthalic acid (C6H4(COOH)2).
- Terephthalic acid is also an acidic monomer.

- **Option 3: Bakelite**
- Monomers: Phenol (C6H5OH) and Formaldehyde (HCHO).
- Neither of these monomers is acidic, as phenol is a weak acid and formaldehyde is neutral.

- **Option 4: Teflon**
- Monomer: Tetrafluoroethane (CF2=CF2).
- This is an addition polymer and does not involve any acidic monomer.

2. **Conclusion:**
- From the analysis, we see that:
- Nylon 66, Dacron, and Bakelite involve acidic monomers.
- Teflon does not involve any acidic monomer.
- Therefore, the correct answer is **Option 4: Teflon**.