6.3.3 Polymers

• Polymers can only be synthetic

  False
• Natural polymers are found in nature, such as in plants and animals
• Match the type of polymer with its example:

  Natural Polymers ↔️ Proteins

  Synthetic Polymers ↔️ PVC
• Polymerization involves the loss of a small molecule

  False
• In condensation polymerization, functional groups on monomers react to form the polymer, releasing a small molecule like water
• Match the nitrogen-containing polymer with its property:

  Polyamides ↔️ High strength

  Polyurethanes ↔️ Flexible
• Synthetic polymers are used in the food industry

  False
• Synthetic polymers are chemically synthesized
• Match the type of polymer with its source:

  Natural Polymers ↔️ Natural sources

  Synthetic Polymers ↔️ Chemical synthesis
• What is the process of linking monomers together to form polymers called?

  Polymerization
• Polymers are large molecules made of repeating units called monomers
• Match the type of polymer with its source:

  Natural Polymers ↔️ Natural sources

  Synthetic Polymers ↔️ Chemical synthesis
• Synthetic polymers are often used in food packaging

  False
• Monomers are the repeating units that make up polymers
• Match the type of polymerization with its definition:

  Addition Polymerization ↔️ Monomers join through double bonds

  Condensation Polymerization ↔️ Monomers join with loss of a small molecule
• Addition polymerization does not involve the loss of small molecules


  True
• Polyacrylamides are used as thickening agents in cosmetics
• What are examples of natural polymers found in plants and animals?

  Proteins, cellulose, starch
• Natural polymers are commonly used in food, textiles, and packaging.

  True
• The key difference between natural and synthetic polymers is their source
• Order the steps involved in polymerization mechanisms:

  1️⃣ Monomers link together

  2️⃣ Formation of new bonds

  3️⃣ Creation of a polymer chain
• What small molecule is typically lost during condensation polymerization?

  Water
• Nitrogen-containing polymers have properties such as strength, heat resistance, and flexibility
• Polyurethanes are flexible, tough, and elastic, making them suitable for foams.

  True
• Match the nitrogen-containing polymer with its application:

  Nylon ↔️ Clothing

  Spandex ↔️ Elastic clothing

  Polyacrylamides ↔️ Thickening agents in cosmetics
• In addition polymerization, monomers join through their double bonds without the loss of any small molecules.


  True
• Match the polymerization mechanism with its example:

  Addition Polymerization ↔️ Polyethylene

  Condensation Polymerization ↔️ Nylon
• What are examples of polyamides that have high strength and heat resistance?

  Nylon, Kevlar
• Polyacrylamides are highly absorbent and water soluble