What is the process of joining monomers together to form polymers called?
Polymerization
The polymerization process is essential for creating materials like plastics, rubber, and synthetic fibers.
True
Match the type of polymer with its source:
Natural polymers ↔️ Living organisms
Synthetic polymers ↔️ Petrochemicals
Match the type of polymer with an example:
Natural polymer ↔️ Cellulose
Synthetic polymer ↔️ Polyethylene
Addition polymerization involves unsaturated monomers, while condensation polymerization requires two different monomers
What happens to atoms during addition polymerization?
They are conserved
What is the purpose of initiation in polymerization?
Activate the monomers
Match the polymer type with its description:
Natural Polymers ↔️ Occur naturally
Synthetic Polymers ↔️ Artificially created
Where are synthetic polymers created?
Lab or factory
What type of monomers are used in addition polymerization?
Unsaturated monomers
What type of monomers are required in condensation polymerization?
Two different monomers
What type of structure do thermosets have?
Highly cross-linked network
Polymers are large molecules made up of many smaller repeating units called monomers
What are polymers classified as based on their origin?
Natural or synthetic
What is the key difference between natural and synthetic polymers?
Origin and structure
Synthetic polymers are derived from living organisms.
False
What byproduct is eliminated during condensation polymerization?
Water
The monomer type in addition polymerization is unsaturated, while in condensation polymerization, two different monomers are required
In propagation, activated monomers link together to form a polymer chain.
True
Natural polymers occur naturally, while synthetic polymers are artificially created in a lab or factory
Polymers can be classified based on their source as either natural polymers or synthetic polymers
From what sources are natural polymers derived?
Living organisms
Synthetic polymers are designed for specific applications.
True
Condensation polymerization eliminates small molecules, such as water, as a byproduct.
True
Condensation polymerization releases small molecules as monomers combine.
True
Thermoplastics can be reshaped and recycled.
True
Thermoplastics can be repeatedly softened by heating.
True
Which thermoset is used for circuit boards in electronics?
Phenol-formaldehyde
What happens to thermosets when heated?
Maintain shape
PVC is commonly used in the construction industry for pipes, windows, and siding
Thermoplastics are more suitable for recyclable, moldable products, while thermosets excel in applications requiring high heat resistance and structural integrity
Steps in the polymerization process
1️⃣ Initiation
2️⃣ Propagation
3️⃣ Termination
Examples of natural polymers include cellulose, starch, proteins, and DNA
Natural polymers are found in living organisms, while synthetic polymers are artificially created in a lab or factory
What type of structure do natural polymers often have?
Complex, irregular
PVC is an example of a polymer created through condensation polymerization.
False
Steps in the polymerization process
1️⃣ Initiation
2️⃣ Propagation
3️⃣ Termination
What causes termination in polymerization?
No more monomers or altered conditions
What type of structure do synthetic polymers often have?
Simpler, more uniform
Natural polymers are found in living organisms and have evolved over time