Which of the following is/are addition polymer/s?

Options

A. PVC
B. Nylon-6
C. Teflon
D. Terylene

Answer

To determine which of the given options are addition polymers, we need to understand the characteristics of addition and condensation polymers.

### Step-by-Step Solution:

1. **Understanding Addition Polymers**:
Addition polymers are formed by the addition of monomer units that contain double or triple bonds. During this process, no small molecules are eliminated.

2. **Identifying the Monomers**:
For each of the given polymers, we need to identify the monomer and determine whether it undergoes addition polymerization.

3. **Analyzing PVC (Polyvinyl Chloride)**:
- Monomer: Vinyl chloride (CH2=CHCl).
- Process: The double bond in vinyl chloride opens up and links with other vinyl chloride units without the loss of any small molecules.
- Conclusion: PVC is an addition polymer.

4. **Analyzing Nylon 6**:
- Monomer: Caprolactam.
- Process: Nylon 6 is formed through a condensation reaction where water is eliminated.
- Conclusion: Nylon 6 is NOT an addition polymer.

5. **Analyzing Teflon (Polytetrafluoroethylene)**:
- Monomer: Tetrafluoroethylene (CF2=CF2).
- Process: The double bonds in tetrafluoroethylene open up to form long chains without the loss of any small molecules.
- Conclusion: Teflon is an addition polymer.

6. **Analyzing Terylene (Polyethylene Terephthalate)**:
- Monomers: Ethylene glycol and terephthalic acid.
- Process: Terylene is formed through a condensation reaction where water is eliminated.
- Conclusion: Terylene is NOT an addition polymer.

### Final Conclusion:
The addition polymers from the options provided are:
- **PVC (Polyvinyl Chloride)**
- **Teflon (Polytetrafluoroethylene)**