Write a chemical equation for formation of a polymer via a condensation reaction from the monomers succinic acid \(\quad\left(\mathrm{HOOCCH}_{2} \mathrm{CH}_{2} \mathrm{COOH}\right) \quad\) and \(\quad\) ethylenediamine \(\left(\mathrm{H}_{2} \mathrm{NCH}_{2} \mathrm{CH}_{2} \mathrm{NH}_{2}\right)\)

A condensation reaction is a type of polymerization reaction in which two monomer units combine with the elimination of a small molecule, such as water or methanol. In this case, succinic acid and ethylenediamine will combine to form a polymer along with the elimination of water.

The reactive sites are the functional groups on both monomers that will participate in the reaction. Succinic acid contains two carboxylic acid groups \(\left(\mathrm{HOOCCH}_{2}\mathrm{CH}_{2}\mathrm{COOH}\right)\) and ethylenediamine contains two amine groups \(\left(\mathrm{H}_{2}\mathrm{NCH}_{2}\mathrm{CH}_{2}\mathrm{NH}_{2}\right)\). A condensation reaction will occur between the carboxylic acid group of succinic acid and the amine group of ethylenediamine.

A condensation reaction between the carboxylic acid group and the amine group leads to the formation of an amide linkage along with the elimination of water. We can represent this reaction as: \[\mathrm{HOOCCH}_{2}\mathrm{CH}_{2}\mathrm{COOH} + \mathrm{H}_{2}\mathrm{NCH}_{2}\mathrm{CH}_{2}\mathrm{NH}_{2} \longrightarrow \mathrm{HOOCCH}_{2}\mathrm{CH}_{2}\mathrm{CONHCH}_{2}\mathrm{CH}_{2}\mathrm{NH}_{2} + \mathrm{H}_{2}\mathrm{O} \] When several monomer units undergo a similar reaction, the resulting polymer has alternating amide linkages along its backbone. This can be represented as: \[\mathrm{HOOCCH}_{2}\mathrm{CH}_{2}\mathrm{COOH} + \mathrm{n} \; \mathrm{H}_{2}\mathrm{NCH}_{2}\mathrm{CH}_{2}\mathrm{NH}_{2} \longrightarrow \mathrm{HOOCCH}_{2}\mathrm{CH}_{2}\mathrm{CONHCH}_{2}\mathrm{CH}_{2}\mathrm{NH}_{2}\mathrm{CONHCH}_{2}\mathrm{CH}_{2}\mathrm{COOH} \cdots \] Where 'n' represents the number of repeating units in the polymer.