Which of the following is biodegradable polymer?

Options

A. PHBV
B. Nylon-6
C. Polyethene
D. Nylon-6, 10

Answer

To determine which of the following polymers is biodegradable, we will analyze each option provided: PHBV, nylon 6, polyethene, and nylon 6,10.

### Step 1: Define Biodegradable Polymers
Biodegradable polymers are those that can be broken down by the action of microorganisms or enzymes into simpler, non-toxic molecules such as carbon dioxide, water, or nitrogen. This decomposition occurs under aerobic (with oxygen) or anaerobic (without oxygen) conditions.

### Step 2: Analyze Each Option
1. **PHBV (Polyhydroxybutyrate-co-hydroxyvalerate)**:
- PHBV is a well-known biodegradable polymer. It is formed by the polymerization of 3-hydroxybutanoic acid and 3-hydroxypentanoic acid.
- It can be broken down by microorganisms, making it biodegradable.

2. **Nylon 6**:
- Nylon 6 is a synthetic polymer that is not biodegradable. It is resistant to environmental degradation and can persist in the environment for a long time.

3. **Polyethene (Polyethylene)**:
- Polyethene is another synthetic polymer that is not biodegradable. It is widely used in packaging and can take hundreds of years to decompose.

4. **Nylon 6,10**:
- Similar to nylon 6, nylon 6,10 is also a synthetic polymer and is not biodegradable. It does not break down easily in the environment.

### Step 3: Conclusion
Based on the analysis, the only biodegradable polymer among the options provided is **PHBV**.

### Final Answer:
**PHBV is the biodegradable polymer.**

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