Chem lab 15 - Michelle Chuckran Alex Boeri Sheldon Pope Brandon Pezzuto Chem 404 section 7 Polymer Consultant Lab A 1 Two different notations of

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Chem 404 section 7 Polymer Consultant Lab 2-28-08 A. 1. Two different notations of the Kevlar polymer drawn on attached sheet of paper. 2. Electron dot diagrams for the monomers attached. 3. Stephanie Kwolek invented and patented Kevlar, and decided to name it Kevlar. 4. No, Kevlar does not perform free radical polymerization because this requires very active atoms or molecules. 5. Structural formulas for the monomers of Kevlar attached and labeled. 6. Kevlar is produced by condensation polymerization. Kevlar is produced in a low temperature controlled environment which allows the condensation polymerization. This process is very quick which makes Kevlar vest production speedy. Kevlar is costly to synthesize because it requires concentrated sulfuric acid to keep the water-insoluble polymer in liquid form during synthesis. After Kevlar is made into the liquid form it is then spun like nylon thread to form Kevlar fiber. After Kevlar is made it is woven like silk into a vest which can then be worn. 7. The NH 2 bonds are polar. There are no other polar bonds in Kevlar monomers. 8. Kevlar monomers are polar because single bonds can rotate and are easily ready for hydrogen bonds. 9.
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This note was uploaded on 04/18/2008 for the course CHEM 404 taught by Professor Bauer during the Spring '08 term at New Hampshire.

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Chem lab 15 - Michelle Chuckran Alex Boeri Sheldon Pope Brandon Pezzuto Chem 404 section 7 Polymer Consultant Lab A 1 Two different notations of

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