Question

Give the equation for preparation of biodegradable polymer of polyester
class. Which properties of monomers are there in this compound​

Answer 1

Answer:

Monomer, a molecule of any of a class of compounds, mostly organic, that can react with other molecules to form very large molecules, or polymers. The essential feature of a monomer is polyfunctionality, the capacity to form chemical bonds to at least two other monomer molecules. Bifunctional monomers can form only linear, chainlike polymers, but monomers of higher functionality yield cross-linked, network polymeric products.

Answer 2

Answer: The general equation for the preparation of a biodegradable polymer of polyester class is:

polyester = diol + dicarboxylic acid (or ester)

where the diol is a compound with two hydroxyl groups (-OH) and the dicarboxylic acid (or ester) is a compound with two carboxyl groups (-COOH) or ester groups (-COO-).

Explaination: Polyhydroxybutyrate-co-hydroxyvalerate (PHBV) is an example of biodegradable polymer.

• Following steps are involved in the preparation of PHBV.

• Formation of β-hydroxybutyrate (β-HB) monomer:

• Formation of β-hydroxyvalerate (β-HV) monomer:

• Polymerization of β-HB and β-HV monomers to form PHBV.

The properties of the monomers used to prepare this compound can affect the properties of the resulting biodegradable polymer.

• For example, the length of the diol and dicarboxylic acid (or ester) molecules can affect the degree of crystallinity and melting point of the polyester.

• Additionally, the presence of functional groups on the monomers can affect the biodegradability and biocompatibility of the resulting polymer.

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