Practice Questions

<h3 style="color: rgb(255,255,255);">Dacron (Polyethylene Terephthalate - PET)</h3><ul style="color: rgb(255,255,255);"><li>Monomers: The condensation polymerization of Ethylene Glycol (ethane-1,2-diol) and Terephthalic Acid (benzene-1,4-dicarboxylic acid) produces Dacron.</li><li>Chemical Class: It is classified as a Polyester because the monomer units are linked by ester functional groups formed through the elimination of water molecules.</li><li>Mechanism: The reaction occurs via step-growth polymerization, typically performed at high temperatures (around 420-460 K) in the presence of zinc acetate-antimony trioxide catalysts.</li><li>Properties: <ul style="color: rgb(255,255,255);"><li>Dacron is highly resistant to chemical degradation and moisture.</li><li>It exhibits high tensile strength and durability.</li><li>It is widely used in the textile industry for manufacturing synthetic fibers and in packaging materials like plastic bottles.</li></ul></li><li>Alternative Name: In the context of industrial fibers, it is commonly referred to as Terylene or PET (Polyethylene Terephthalate).</li></ul>

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