Which of the following polymers is a urea-for | vedclass

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Question

(A) The urea-formaldehyde resin is a thermosetting polymer formed by the condensation polymerization of urea $(NH_2CONH_2)$ and formaldehyde $(HCHO)$.

Vedclass · Accepted Answer

$[NH-CO-NH-CH_2]_n$

Vedclass · Answer

(A) The urea-formaldehyde resin is a thermosetting polymer formed by the condensation polymerization of urea $(NH_2CONH_2)$ and formaldehyde $(HCHO)$.The reaction involves the formation of methylol urea derivatives,which then undergo further condensation to form a cross-linked network structure.The repeating unit of the linear polymer chain formed during the process is represented as $[NH-CO-NH-CH_2]_n$.Therefore,the correct option is $A$.

Which of the following polymers is a urea-formaldehyde resin?

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