52_100_Lecture_11_26_07

52_100_Lecture_11_26_07 - 11/26/2007 1 No discussion of...

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Unformatted text preview: 11/26/2007 1 No discussion of condensation polymerization can be complete without including a discussion on proteins. Condensation Polymerization in Nature Wallace Carothers - Inventor of nylon 11/26/2007 2 Dr. Carothers was studying the formation of peptide bonds in the labs of DuPont during the 1930s. In place of amino acids, he reacted the following compounds and a chemistry discipline was b Condensation Polymerization in Nylon born! O H OH O O N H 2 NH 2 + Adipic acid Hexamethylene diamine HO C O CH 2 CH 2 CH 2 CH 2 C O O H + H N H CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 N H H Adipic acid Hexamethylenediamine Nylon C O CH 2 CH 2 CH 2 CH 2 C O N H CH 2 CH 2 CH 2 CH 2 CH 2 CH 2 N H n H 2 O- Ny on 66 Nylon 66 Nylon is a generic designation for a family of synthetic polymers first produced on February 28, 1935 by Wallace Carothers at DuPont Chemical Co. Nylon is one of the most common polymers used as a fiber. 11/26/2007 3 Mix phenylenediamine and terephthalic acid in a 50/50 mol proportion and you can create fibers fit for Superman. Another Interesting Condensation Polymer One Last Interesting Commercial Polymer Polytetrafluoroethylene (PTFE ) is a fluropolymer discovered by Roy J. Plunkett of DuPont in 1938. It was introduced as a commercial product in 1946 and is F F F F F F F F F F F F F F F F generally known to the public by Duponts brand name Teflon F F F F FF FF Teflon CF 2 CF 2 * n 11/26/2007 4 Natual Polymers (Biopolymers): Carbohydrates (Chapter 16) 1. Starch Nature Made the First Polymers 2. Cellulose Proteins (Chapter 17) 1. Enzymes 2. Keratin 3. Peptides Nucleic Acids (Chapter 18) 1. DNA 2. RNA Natual Polymers (Biopolymers): Carbohydrates (Chapter 16) 1. Starch Nature Made the First Polymers 2. Cellulose Proteins (Chapter 17) 1. Enzymes 2. Keratin 3. Peptides Nucleic Acids (Chapter 18) 1. DNA 2. RNA 11/26/2007 5 Natual Polymers (Biopolymers)...
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52_100_Lecture_11_26_07 - 11/26/2007 1 No discussion of...

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