polymer - Introduction to Polymers Preparation of...

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1 Introduction to Polymers Preparation of Nylon-6,10, p. 764 Part C, p. 756: Stability of polystyrene towards organic solvents. Part C, p. 756: Polymers and water. Part C, p. 756: Cross-Linking of Polymers. Important Concepts • DeFnition of a polymer/monomer • Step-Growth mechanism • Chain-Growth mechanism • Polystyrene and Nylon • Cross-linking • Polymer Gel
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2 Types of Polymers Greek: poly meros many part polymer Polymer - long chain of connected units called monomers homopolymer random copolymer block copolymer branched polymer main chain polymer side chain polymer Hyperbranched polymer [Dendrimer] x monomer Synthetic Polymers Natural Polymers plastics, contact lens, hair gel, diapers, glue, epoxy resins, teFon, styrofoam, etc. cellulose (i.e. wood), starch, hair, silk, DNA, hemoglobin (i.e. proteins), etc.
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3 Commercially Important Synthetic Polymers * * n * * n F F F F F F F F Polytetrafuoroethylene (Tefon) - jars, gas cans, etc. - nonstick coatings - high-impact glass, dentures, acrylic paint, etc. - helmets, knee pads, very hard plastics, etc. Polycarbonate R 1 R 2 HO OH Cl Cl O + R 1 R 2 * O O * O n Epoxy Resins - Fberglass adhesive, sur±boards, boat hulls, etc. Polyethylene
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This note was uploaded on 04/04/2011 for the course CHEM 341 taught by Professor Staff during the Fall '08 term at SIU Carbondale.

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polymer - Introduction to Polymers Preparation of...

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