PHBV is a biodegradable polymer and is obtained by copolymerization of ....................with ...................

Answer

To answer the question, "PHBV is a biodegradable polymer and is obtained by copolymerization of ....................with ...................", we need to identify the two monomers involved in the copolymerization process that leads to the formation of PHBV.

### Step-by-Step Solution:

1. **Identify PHBV**:
- PHBV stands for Polyhydroxybutyrate-co-hydroxyvalerate. It is a type of biodegradable polymer.

2. **Determine the Monomers**:
- The monomers used to create PHBV are:
- 3-Hydroxybutanoic acid (also known as β-hydroxybutyric acid)
- 3-Hydroxyvaleric acid (also known as β-hydroxyvaleric acid)

3. **Write the Copolymerization Reaction**:
- The copolymerization involves the esterification of these two monomers.
- The reaction can be summarized as:
- 3-Hydroxybutanoic acid + 3-Hydroxyvaleric acid → PHBV + Water (H2O)

4. **Final Answer**:
- Therefore, the complete answer to the question is:
- PHBV is obtained by the copolymerization of **3-Hydroxybutanoic acid** with **3-Hydroxyvaleric acid**.