GATE 2024 (XE-F) Polymer Science & Engineering Solution (Part-II)

[@theconstantstruggler5591]

Voice is not clear

[@pushkala.m]

6:43 conc of repeat unit is equal to conc of 1 of the monomer ? Why What if the conc of boh monomers weren't same / equal? Then what would be the conc of repeat unit ? Average of the both? Kindly explain, Sir

[@PolymerWorld]

Repeat units are the smallest segments of a polymer that can undergo polymerization independently. These molecules contain two distinct functional groups capable of reacting with each other. When two monomer units are present in equal concentrations, they theoretically react in a 1:1 ratio to form an equivalent number of repeat units. However, if the concentration of one monomer is lower than the other, the number of repeat units formed will be limited by the concentration of the lesser monomer. Once the lower-concentration monomer is fully consumed, any excess of the other monomer will remain unreacted and will not contribute to the polymer structure. Adjusting the relative concentrations of the monomers is a common method for controlling the molecular weight of the resulting polymer.