Methods of Polymerisation — Predicted 2026

AI-Predicted Question Angles for UPSC 2026

Based on trend analysis, current affairs, and recurring themes in Methods of Polymerisation.

Identification of Polymerisation Type from Monomer/Polymer Structure

high

This is a perennial favorite in NEET. Students will be given a monomer (e.g., ethene, caprolactam, hexamethylenediamine + adipic acid) or a polymer repeating unit and asked to identify if it undergoes addition, condensation, or ring-opening polymerisation. This tests fundamental understanding of monomer functional groups and the presence/absence of by-products. Mastery of key examples is crucial here.

Mechanism of Free Radical Polymerisation

medium

While detailed mechanistic steps are usually beyond NEET scope, questions often test the understanding of the three stages: initiation, propagation, and termination. For example, a question might ask about the role of an initiator, what happens in the propagation step, or the possible ways termination can occur. Understanding the concept of free radicals and their role is key.

By-products in Condensation Polymerisation

medium

A common conceptual check is to ask about the small molecule eliminated during a specific condensation polymerisation reaction (e.g., formation of polyester or polyamide). This directly tests the defining characteristic of condensation polymerisation and requires knowledge of common functional group reactions (e.g., esterification, amidation).

Distinguishing between Homopolymers and Copolymers

low

While not strictly a 'method' of polymerisation, copolymerisation is a variation. Questions might occasionally ask to identify a copolymer or distinguish it from a homopolymer, linking back to the idea of using single vs. multiple types of monomers. This tests the broader classification of polymers based on monomer units.