Polymers Flashcards
What is a polymer?
A polymer is a large molecule composed of repeating structural units known as monomers.
True or False: Polymers can be natural or synthetic.
True
Fill in the blank: The process of joining monomers to form a polymer is called __________.
polymerization
What are the two main types of polymerization?
Addition polymerization and condensation polymerization.
Multiple Choice: Which of the following is an example of a natural polymer? A) Nylon B) Cellulose C) Polystyrene
B) Cellulose
What is the primary difference between addition and condensation polymerization?
Addition polymerization involves the reaction of unsaturated monomers without the loss of any small molecules, while condensation polymerization involves the loss of small molecules such as water.
True or False: Thermoplastics can be reshaped when heated.
True
What is a copolymer?
A copolymer is a polymer made from two or more different types of monomers.
Fill in the blank: The repeating units in a polymer are called __________.
monomers
Multiple Choice: Which of the following is a characteristic of thermosetting polymers? A) They can be melted and reshaped B) They maintain their shape permanently after curing C) They are always flexible
B) They maintain their shape permanently after curing
What role do catalysts play in polymerization?
Catalysts speed up the polymerization process without being consumed in the reaction.
True or False: All polymers are elastic.
False
What is the significance of the degree of polymerization?
The degree of polymerization indicates the number of repeating units in a polymer chain, affecting its properties.
Multiple Choice: Which polymer is known for its high tensile strength? A) Polyethylene B) Kevlar C) Polyvinyl chloride
B) Kevlar
What is the process called when a polymer is broken down into smaller units?
Depolymerization
