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Polymer science
Contributed by: Wyatt
  • 1. Polymer science is a multidisciplinary field that involves the study of large molecules composed of repeating subunits known as polymers. These polymers have unique properties and can be found in everyday materials such as plastics, rubber, and fibers. The study of polymer science encompasses a wide range of topics including polymer synthesis, characterization, processing, and applications in various industries such as automotive, electronics, and healthcare. Understanding polymer science is crucial for developing new materials with improved properties and performance, as well as addressing environmental concerns related to plastic pollution and recycling.

    What is the process of joining small molecules together to form a polymer called?
A) Polymerization
B) Condensation
C) Oxidation
D) Evaporation
  • 2. Which polymer is commonly used in making bottles and food containers?
A) Polyethylene
B) Polyethylene terephthalate (PET)
C) Polypropylene
D) Polycarbonate
  • 3. What does the acronym PVC stand for in polymer science?
A) Polyvinyl alcohol
B) Polycaprolactone
C) Polyvinyl chloride
D) Polyvinylidene chloride
  • 4. Which polymer is used in making flexible hoses and electrical insulation?
A) Polyethylene
B) Polystyrene
C) Polyvinyl chloride (PVC)
D) Polypropylene
  • 5. Which polymer is known for its outstanding heat resistance and stability?
A) Polystyrene
B) Polyvinyl chloride
C) Polypropylene
D) Polyimide
  • 6. What does the acronym PET stand for in polymer science?
A) Polystyrene terephthalate
B) Polypropylene terephthalate
C) Polyethylene terephthalate
D) Polybutylene terephthalate
  • 7. Which polymer is known for its high strength, stiffness, and temperature resistance?
A) Polyethylene
B) Polyetheretherketone (PEEK)
C) Polypropylene
D) Polycarbonate
  • 8. What is the process of adding plasticizers to polymers to increase flexibility called?
A) Vulcanization
B) Polymerization
C) Cross-linking
D) Plasticization
  • 9. Which polymer is commonly used as a lightweight alternative to glass in making windows and screens?
A) Polycarbonate
B) Polypropylene
C) Polystyrene
D) Polyethylene
  • 10. Which polymer is used in making synthetic fibers for clothing and textiles?
A) Polypropylene
B) Polyester
C) Polyethylene
D) Polycarbonate
  • 11. What is the term for the ability of a polymer to return to its original shape after deformation?
A) Brittleness
B) Viscosity
C) Rigidity
D) Elasticity
  • 12. What is the term for the branching out of polymer chains to form a complex network?
A) Crystallization
B) Plasticization
C) Polymerization
D) Cross-linking
  • 13. Which polymer is commonly used in medical sutures and drug delivery systems due to its biodegradability?
A) Polylactic acid (PLA)
B) Polystyrene
C) Polyethylene
D) Polypropylene
  • 14. What is a polymer?
A) A non-reactive substance
B) A large molecule composed of repeated structural units
C) A small molecule
D) A single atomic structure
  • 15. What is the glass transition temperature of a polymer?
A) The temperature at which a polymer melts
B) The temperature at which a polymer combusts
C) The temperature at which a polymer degrades
D) The temperature at which a polymer changes from a hard and brittle state to a rubbery state
  • 16. What is a polymer blend?
A) A mixture of two or more polymers
B) A polymer with different end groups
C) A polymer without crosslinks
D) A single polymer chain
  • 17. What is the significance of molecular weight in polymers?
A) It affects the glass transition temperature of the polymer
B) It influences the physical and mechanical properties of the polymer
C) It is a measure of the polymer's branching
D) It determines the tacticity of the polymer
  • 18. Which polymer processing technique involves melting polymer material and shaping it through a die?
A) Compression molding
B) Injection molding
C) Extrusion
D) Blow molding
  • 19. What is the role of plasticizers in polymers?
A) They strengthen the polymer matrix
B) They control the molecular weight of the polymer
C) They enhance the thermal stability of the polymer
D) They improve flexibility and workability of the polymer
  • 20. Which polymer property is related to the ability of a material to absorb energy during deformation?
A) Toughness
B) Hardness
C) Elasticity
D) Stiffness
  • 21. What is the effect of increasing polymer chain length on material properties?
A) Enhances transparency
B) Reduces thermal stability
C) Decreases flexibility and toughness
D) Generally increases strength and viscosity
  • 22. What does the term 'semicrystalline' refer to in polymer science?
A) Polymers that have both amorphous and crystalline regions
B) Polymers that are fully crystalline
C) Polymers with no distinct structural features
D) Polymers with irregular chain packing
  • 23. What is a macromolecule?
A) Large molecule, such as a polymer, composed of repeating structural units
B) Isolated monomer unit
C) Small molecule with a single atomic structure
D) Non-reactive substance
  • 24. How does UV radiation impact the properties of polymers?
A) It promotes crosslinking in polymers
B) It enhances the thermal stability of polymers
C) It can cause degradation and discoloration of polymers
D) It increases the tensile strength of polymers
  • 25. What is the significance of degree of polymerization in polymer science?
A) It refers to the number of monomer units in a polymer chain
B) It indicates the tacticity of the polymer
C) It controls the polymerization rate
D) It determines the crystallinity of the polymer
  • 26. What is the term for the process of breaking down polymers into monomers or smaller molecules?
A) Polymerization
B) Polymer degradation
C) Depolymerization
D) Crosslinking
  • 27. What is the term for the process of rearranging the molecular structure of a polymer by applying heat or pressure?
A) Copolymerization
B) Plasticization
C) Thermal degradation
D) Annealing
  • 28. Which polymer is known for its exceptional electrical insulating properties?
A) Polytetrafluoroethylene (PTFE)
B) Polyethylene
C) Polyacrylonitrile (PAN)
D) Polycarbonate
  • 29. What is the most widely used natural polymer?
A) Polyvinyl chloride (PVC)
B) Cellulose
C) Polyethylene
D) Polystyrene
  • 30. What is the term for the process of introducing chemical groups to the polymer chain to alter its properties?
A) Crosslinking
B) Polymer degradation
C) Polymerization
D) Functionalization
  • 31. What is the term for a polymer formed from a single type of monomer?
A) Block copolymer
B) Composite polymer
C) Copolymer
D) Homopolymer
  • 32. What is the term for a polymer that consists of two or more chemically distinct repeating units?
A) Copolymer
B) Block copolymer
C) Composite polymer
D) Homopolymer
  • 33. What is a superabsorbent polymer commonly used in diapers?
A) Polypropylene
B) Polystyrene
C) Polyethylene terephthalate
D) Sodium polyacrylate
  • 34. What is the process of joining two different monomers to form a polymer chain?
A) Copolymerization
B) Crosslinking
C) Addition polymerization
D) Polycondensation
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