Give the structures of the monomers from which aliphatic biodegradable polymer which is used in packing and in orthopedic devices is formed ?

Explanation

To answer the question regarding the structures of the monomers from which the aliphatic biodegradable polymer used in packing and orthopedic devices is formed, we will focus on the polymer known as PHBV (Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)).

### Step-by-Step Solution:

1. **Identify the Polymer**: The biodegradable polymer in question is PHBV, which stands for Poly(3-hydroxybutyrate-co-3-hydroxyvalerate).

2. **Determine the Monomers**: PHBV is synthesized from two types of monomers:
- 3-Hydroxybutyric acid (3-HB)
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