Basics
What is the name for the temperature at which a polymer transitions from a glassy to a rubbery state?
Glass transition temperature.
What polymer is used to coat frying pans to make them non-stick?
Polytetrafluoroethylene (PTFE).
What type of polymer is formed by hexamethylene diamine and adipic acid?
Nylon 6,6.
The name of the monomer used to make poly(phenylethene)
What is Phenylethene?
What is the process by which nylon is synthesized?
Condensation polymerization
What property of PVC makes it stronger and tougher?
The presence of polar chlorine groups.
What polymer is used in rechargeable metal-ion batteries with a solid polymer electrolyte?
Lithium-ion polymer.
What type of polymer is created through addition polymerization?
Polyethylene
What is the chemical reaction product of terephthalic acid and ethylene glycol?
Dacron
What happens to the solubility of crystalline polymers as crystallinity increases?
Solubility decreases.
What is a semisynthetic polymer used for automobile steering wheels?
Cellulose acetate.
What are polymers called that exhibit both neutral and ionized repeating units?
Ion-containing polymers.
Which property makes polymers such as poly(ethene) hard to dispose of?
Excellent resistance to chemical reactions.
What are the two reactants used to produce polyurethanes?
Diisocyanates and polyols.
Why are cross-linked polymers more rigid than non-cross-linked polymers?
Cross-links restrict chain movement.
What polymer is widely used in the preparation of fabrics, ropes, and carpets?
Nylon 6,6.
How does vulcanization improve the properties of rubber?
It increases strength, elasticity, and heat resistance.
What is the first synthetic polymer created, known for being a thermosetting resin?
Bakelite (Phenol-formaldehyde resin).
What process involves the addition of sulfur to cross-link elastomer chains?
Vulcanization
What type of polymers exhibit a shape memory effect?
Shape-memory polymers.
Which polymer is used in the manufacture of superabsorbent diapers?
Sodium polyacrylate.
What is an example of a biological polymer with a helical structure?
DNA