Which of the following polymer is used in pigment

Options

A. Buna - S
B. Neoprene
C. Teflon
D. Orlon

Explanation

To determine which polymer is used as a pigment, we will analyze the given options: Buona S, Neoprene, Teflon, and Orlon.

### Step 1: Understand the polymers listed
- **Buona S**: This is a type of synthetic rubber made from styrene and butadiene.
- **Neoprene**: This is a type of synthetic rubber known for its weather resistance and flexibility.
- **Teflon**: This is a polymer known for its non-stick properties, primarily used in cookware.
- **Orlon**: This is a type of acrylic fiber used in textiles.

### Step 2: Identify the polymer used as a pigment
Among the listed polymers, Buona S is known to be used in paints and coatings as a pigment. It is made from the monomers styrene and 1,3-butadiene.

### Step 3: Confirm the structure of the monomers
- **Styrene (C8H8)**: The structure is CH2=CH-C6H5 (a vinyl group attached to a phenyl group).
- **1,3-Butadiene (C4H6)**: The structure is CH2=CH-CH=CH2.

### Step 4: Conclusion
Based on the analysis, the polymer that is used as a pigment is **Buona S**.

### Final Answer:
The polymer used in pigment is **Buona S**.

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