Which manufacturing process does not involve condensation polymerization_________________?
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Answer: B. Polythene
Explanation
Polythene is synthesized entirely through addition polymerization reactions without eliminating any smaller byproduct molecules. Ethylene monomers join together via opening of double bonds, making condensation steps completely unnecessary here. The correct option is polythene because it strictly utilizes addition mechanisms rather than condensation pathways. Addition polymerization involves unsaturated monomer molecules reacting together to form long chain polymers without losing atoms. Condensation polymerization typically releases small molecules like water or methanol as a byproduct during bond formation. Polythene represents the simplest and most widely manufactured thermoplastic addition polymer in modern chemical industries.
Packaging industries consume massive quantities of polythene films for producing grocery bags and protective wrapping sheets. Agricultural irrigation networks rely heavily on durable polythene pipes for efficient water distribution in crop fields. Differentiating polymerization types allows chemical engineers to tailor polymer molecular architectures for specific industrial applications. Option A involves specialized polymerization pathways where certain fluoropolymers exhibit distinct manufacturing characteristics. Option C is Terylene which is a well-known polyester produced by condensation reactions releasing water molecules. Option D is nylon which forms via step-growth condensation polymerization between diamines and dicarboxylic acid molecules.
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- Engineering
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- Chemical Engineering
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