Polymer Chemistry: Crash Course Organic Chemistry

The video explores the world of polymers, starting with the accidental discovery of PTFE. It explains the basics of polymers, including monomers and simple addition polymers like polyethylene and polystyrene. Various polymerization techniques such as radical, cationic, and anionic polymerization are discussed. The video also covers condensation polymers, highlighting examples like Kevlar and Lexan. It delves into polymer morphology, explaining how structure affects properties, and discusses the impact of temperature on polymers, using the Challenger disaster as a case study.

What was the accidental discovery made by Dr. Roy Plunkett that led to the creation of a nonstick compound?

• Polyethylene

• Polystyrene

• Polyvinyl chloride

• Polytetrafluoroethylene (PTFE)

Which of the following is an example of a biological polymer?

• Teflon

• Polystyrene

• DNA

• Polyethylene

What is the term used for polymers made from more than one type of monomer?

• Monopolymers

• Copolymers

• Homopolymers

• Isopolymers

Which type of polymerization involves the use of radicals, cations, or anions?

• Chain transfer polymerization

• Step growth polymerization

• Condensation polymerization

• Addition polymerization

What small molecule is often released during condensation polymerization?

• Water

• Hydrogen

• Carbon dioxide

• Oxygen

Which polymer is known for its strength and is used in bulletproof vests?

• Polystyrene

• Lexan

• Polyethylene

• Kevlar

What is the term for the study of how the same polymer can be structured in different ways?

• Morphology

• Amorphization

• Crystallization

• Polymerization

What is the glass transition temperature (TG) in polymers?

• The temperature at which a polymer becomes rubbery and flexible

• The temperature at which a polymer crystallizes

• The temperature at which a polymer becomes brittle

• The temperature at which a polymer melts completely

Which type of polyethylene is highly crystalline and used for making harder plastics?

• Branched polyethylene

• Low density polyethylene (LDPE)

• Cross-linked polyethylene

• High density polyethylene (HDPE)

What was a significant consequence of the Challenger shuttle disaster related to polymer chemistry?

• The o-rings became too flexible

• The o-rings melted completely

• The o-rings lost elasticity and became brittle

• The o-rings expanded and caused a leak