Chapter 18 Polymers. Macromolecule Polymer Monomer Homopolymer Copolymer.

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Presentation transcript:

Chapter 18 Polymers

Macromolecule Polymer Monomer Homopolymer Copolymer

Types of Synthetic Polymers Elastomers Fibers Plastics

Polymer Structure Linear Polymers Branched Polymers

Joining of Polymer Chains Attraction of polymer chains Bonding of polymer chains – cross-links

Affect of Heat Thermoplastic polymers Thermosetting polymers

General Classification of Polymers Addition polymers Condensation polymers

Addition Polymers Monomers –Initiator –Inhibitor Reaction conditions

Common Addition Polymers

Addition Polymers - Elastomers Isoprene Neoprene Vulcanization

Sample Problem

Condensation Polymers Natural ones include: –Cotton –DNA –Leather –Starch Synthetic ones include: –Dacron –Nylon –Plexiglas –Spandex

Polyester

Dacron

Polyamides Nylon

Versatility Strength

Sample Problems

More Sample Problems

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