Polymers: Definitions and Reactions

Page 3: Polymers

• Polymers are covered on page 7 of the textbook.

Page 4: Lesson Objectives

• Define Polymer and Monomer.

• Differentiate between Condensation and Hydrolysis reactions based on definition, products, and bond status.

Page 5: Key Terms

• Polymer

• Monomer

• Polymerization

• Condensation Polymerization

Page 7-8: Definitions

• Polymer: A large molecule (macromolecule) formed from many smaller repeating structural units.

• Monomer: Small repeating units linked by chemical bonds that make up a polymer.

Page 10-11: Review

• A monomer is the repeating unit in a chain-like molecule.

• A polymer is a chain-like molecule composed of repeating chemical units.

Page 13-14: Condensation Reaction

• Definition: A reaction that links monomers together by forming a bond through the removal of water molecules.

• Products: Polymer and $H_2O$ (water molecule).

• Bonding: Bonds are formed between monomers.

Page 15: Example Polymer

• Polyacetal.

Page 16: Hydrolysis Reaction

• Definition: A reaction that breaks down a polymer (breaks bonds) through the addition of water molecules.

• Products: Monomers (e.g., Methylene glycol) and $H_2O$ (water molecules).

• Bonding: Bonds within the polymer are broken.

Page 18-19: Polyacetal Uses

• Monomer: Methylene glycol.

• Uses: Manufacturing of valves, medical tools, and clothing zippers.

Page 21: Example Monomer

• Monomer for a polymer with formula $C<em>2H</em>6O<em>2$ or $(CH</em>2OH)_2$ is Ethylene glycol.

Page 23: Comparison of Reactions