<p>Chm 123L Lab 10 Due November 26</p><p>Polymerization </p><p>In this lab, you will prepare Nylon. Specifically, Nylon 6-10. Nylon is a polymer of 1,6-diaminohexane and sebacoyl chloride. When mixed, amide bonds form, linking the individual monomer units together. </p><p>This experiment is a modification of the so-called “Nylon rope trick.”</p><p>Carry out the experiment with a partner. </p><p>Safety</p><p>The compounds used in this experiment are irritiating and caustic. Wear gloves at all times when handling them – including when you are handling the polymer.</p><p>Dispose of the organic reagents in the organic waste and aqueous reagents in aqueous waste. </p><p>Procedure</p><p>Clamp a test tube, graduated cylinder or beaker firmly in place. To this add 15 mL of an aqueous solution that is 0.5M in 1,6-diaminohexane and 0.5M sodium carbonate. Allow the contents to settle. </p><p>Now, very slowly, pipet 15 mL of a 0.2M solution of sebacoyl chloride in hexane down the sides of the vessel such that it forms a layer on top of the diaminohexane layer. You want to do this in such a way as the two layers do not mix.</p><p>Observe the vessel for 60 seconds and note the formation of a milky boundary between the layers.</p><p>Insert a copper wire into the boundary and use it to, slowly, draw out a polymer thread. With your partner, collect the thread.</p><p>Repeat this procedure three times. Record the length of unbroken rope you are able to collect.</p><p>Take the longest piece of unbroken rope you make and place it, gently, on a piece of filter paper in a Buchner funnel. Apply vacuum and wash extensively with water. Allow the rope to air dry and record a weight. Is Nylon 6-10 soluble in methanol? Acetone? Ether? </p><p>Questions</p><p>1. What is the structure of 1,6-diaminohexane? Sebacoyl chloride? 2. What is the structure of Nylon 6-10? 3. What sort of functional group holds the polymer together? 4. If 1,6-hexanediol were used instead of 1,6-diaminohexane, what would be the structure? Would the polymer have the same properties?</p><p>5. What would happen if you simply swirled the two layers together rapidly?</p>