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An Introduction to Polymers Dr. Sheppard CHEM 4201 Fall 2014
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Polymers Natural vs. synthetic Industries What is a polymer? Monomer Dimer Oligomer Polymer Copolymer
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Crosslinked Dendrimers Structure Linear Branched
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Copolymers
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Properties Structure Size and MW Density Crystallinity Strength Biodegradability Example: polyethylene
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Polymer recycling
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Polymer Classifications Thermal Properties Thermoplastics Plasticizers Thermoset plastics
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Polymer Classifications Uses Elastomers (rubber) Fibers Adhesives Natural rubber
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Polymer Classifications Method of Synthesis 1. Chain-growth/addition polymerization 2. Step-growth/condensation polymerization
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Polymerization Reactions 1. Chain-growth/addition Radical
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Polymerization Reactions 1. Chain-growth/addition Acid (cationic) Base (anionic)
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Polymerization Reactions 2. Step-growth/condensation
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Naming Simple polymers:
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Some Addition Polymers Polytetrafluoroethylene (PTFE) 1,1-Dichloroethylene Polypropylene (PP)
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Some Addition Polymers Acrylates Poly(methyl methacrylate) (PMMA) Poly(ethyl acrylate) (PEA) Poly(2-hydroxyethyl methacrylate) Cyanoacrylates
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Some Addition Polymers Rubber Natural rubber Neoprene rubber Butadiene copolymers
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Polyamides Nylon 6,6 Nylon 6 Some Condensation Polymers
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Polyamides Kevlar
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Some Condensation Polymers Polyesters Poly(ethylene terephthalate) Other polyesters
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Some Condensation Polymers Polyurethanes Spandex Other polyurethanes
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Polycarbonates Lexan Some Condensation Polymers
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Silicones (Siloxanes)
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Applications of Polymers Choosing a polymer Design Other factors Mechanical/thermal properties Synthesis Body’s reaction to polymer Biodegradability Polyglycolide (PGA), polylactide (PLA), and copolymers
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Drug-polymer conjugate http://www.neurospine.com/ brain_gliadel.htm http://www.neurospine.com/ brain_gliadel.htm http://www.moffitt.org/File%2 0Library/Main%20Nav/Rese arch%20and%20Clinical%20 Trials/Cancer%20Control%2 0Journal/v5n2/article4.pdf http://www.moffitt.org/File%2 0Library/Main%20Nav/Rese arch%20and%20Clinical%20 Trials/Cancer%20Control%2 0Journal/v5n2/article4.pdf Biodegradable Polymers for Drug Delivery Drug linker polymer
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