In addition to their use in water treatment, ion-exchange resins are used to extract Au, Ag, and Pt ions from solution. Oneof the most common resins consists of a polymer with abenzene-containing backbone to which sulfonic acid groups(–SO₃H) are then added. (a) What monomer can be used toprepare the polymer backbone? (b) This polymer typically con-tains 4–16% crosslinking. Draw the structure of the benzene-containing monomer used to crosslink the polymer.

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Q: Monomers to be Polymers Polymorphism polymerization allotropy O tempering

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Polymers

Polymers are naturally occurring or synthetically produced large molecules or compounds which are made up of series of repeating units called monomers. They are joined together by chemical bonds. The term polymer is coined from Greek roots meaning 'many parts' and are found almost everywhere from the plastics bags to the rubber of our tires to our DNA strands.