Polymers Part 1

Polymers Part 1 - Polymers (Poly= many; Mer=unit) Large...

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Polymers ( Poly= many; Mer= unit ) Natural Synthetic Plastics Proteins DNA RNA Polyethylene PVC Nylon Large molecules made up of long chains of atoms covalently bonded together. The molecular chain in polymers consists of basic subunits , each one called a monomer . Annual U.S. production of plastics from 1935 to 1997
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Diamond Graphite Buckminsterfullerene In nature, carbon atoms combine with each other to form chains, rings, mesh-like networks, and three-dimensional structures Carbon Initiating free-radical catalyst R + C :: C H H H H R : C : C H H H H C :: C H H H H R : C : C : C : C H H H H H H H H Polymerization reaction: formation of polyethylene C C H H H H n ethene ( ethylene )
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Addition polymerization n = 500 - 10,000 Chain length C C H H H H n = Synthetic polymers: design strategies Length of the chain. Three-dimensional arrangement of chains. Branching of the chain. Chemical composition of monomer units.
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Polymers Part 1 - Polymers (Poly= many; Mer=unit) Large...

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