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Chapter 18: Problem 46

If a functional group A forms a strong covalent bond with a functional group B, (a) Can the monomers \(\mathrm{A}-\mathrm{xx}-\mathrm{B}\) and \(\mathrm{A}-\mathrm{xx}-\mathrm{B}\) form a polymer? (b) Can the monomers \(\mathrm{A}-\mathrm{xx}-\mathrm{A}\) and \(\mathrm{B}-\mathrm{xx}-\mathrm{B}\) form a polymer? For each "yes" answer, draw a short segment of the polymer and indicate the monomer unit.

Short Answer

Expert verified
(a) Yes, the monomers A-xx-B and A-xx-B can form a polymer. The short segment of the polymer and the monomer unit are: A-xx-B---A-xx-B---A-xx-B (Monomer Unit: A-xx-B) (b) Yes, the monomers A-xx-A and B-xx-B can form a polymer. The short segment of the polymer and the monomer units are: A-xx-A---B-xx-B---A-xx-A---B-xx-B (Monomer Units: A-xx-A, B-xx-B)

Step by step solution

01

Case 1: Monomers A-xx-B and A-xx-B

As both functional groups A and B can form strong covalent bonds with each other, having them in the same monomer (A-xx-B) means that they can bond to other functional groups in a similar manner. Hence, the monomers A-xx-B can form a polymer. The short segment and monomer unit of the polymer would look like: A-xx-B---A-xx-B---A-xx-B (Monomer Unit: A-xx-B)
02

Case 2: Monomers A-xx-A and B-xx-B

Here we have two distinct monomers: A-xx-A and B-xx-B. Since functional group A can form strong covalent bonds with functional group B, these monomers can attach by interacting their A and B functional groups, creating an alternating polymer of A and B. Hence, the monomers A-xx-A and B-xx-B can form a polymer. The short segment and monomer units of the polymer would look like: A-xx-A---B-xx-B---A-xx-A---B-xx-B (Monomer Units: A-xx-A, B-xx-B)

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