Question

A urethane linkage occurs when an alcohol adds across the carbon–nitrogen double bond in an isocyanate.

Polyurethanes are formed from the copolymerization of a diol with a diisocyanate. Polyurethanes are used in foamed insulation and a variety of other construction materials. What is the structure of the polyurethane formed by the following reaction?

Short answer

Structure of the polyurethane formed is shown below.

Step-by-step solution

To find the structure of the polyurethane

Copolymerization of a diol with a diisocyanate are the main reason behind the formation of polyurethanes. These are used in foamed insulation and a variety of other construction materials. The structure of the polyurethane formed is shown below.

Hence the structure of the polyurethane formed.