Dacron belongs to which of the following category?

Polyesters

The correct answer is option 2. Polyesters.

Dacron is a type of polyester, which falls under the category of synthetic polymers. Polyesters are formed through a process called polycondensation polymerization, where monomers containing carboxylic acid \((COOH)\) and alcohol \((OH)\) functional groups react together, releasing water molecules as byproducts.

In the case of Dacron, the specific monomers used in its synthesis are terephthalic acid and ethylene glycol. Terephthalic acid contains two carboxylic acid groups, while ethylene glycol contains two alcohol groups. During polycondensation polymerization, these monomers undergo a chemical reaction in which the carboxylic acid group of one monomer reacts with the alcohol group of another monomer, forming an ester bond \((-COO-)\) and releasing a water molecule \((H_2O)\). This process repeats, resulting in the formation of long chains of repeating units linked by ester bonds.

The resulting polymer is Dacron, which has a linear structure composed of repeating units of terephthalate and ethylene glycol. Dacron is known for its strength, durability, and resistance to stretching, making it a popular material in various applications, including textiles (such as clothing, upholstery, and beddings), industrial fibers, and medical implants.

Overall, Dacron's properties and versatility make it a valuable synthetic material with a wide range of uses in both consumer and industrial sectors.