A) Evaporation B) Condensation C) Polymerization D) Oxidation
A) Polyethylene terephthalate (PET) B) Polypropylene C) Polyethylene D) Polycarbonate
A) Polyvinyl alcohol B) Polycaprolactone C) Polyvinyl chloride D) Polyvinylidene chloride
A) Polystyrene B) Polyethylene C) Polyvinyl chloride (PVC) D) Polypropylene
A) Polyvinyl chloride B) Polypropylene C) Polyimide D) Polystyrene
A) Polyethylene terephthalate B) Polystyrene terephthalate C) Polybutylene terephthalate D) Polypropylene terephthalate
A) Polyetheretherketone (PEEK) B) Polycarbonate C) Polypropylene D) Polyethylene
A) Plasticization B) Polymerization C) Cross-linking D) Vulcanization
A) Polycarbonate B) Polypropylene C) Polystyrene D) Polyethylene
A) Polyester B) Polycarbonate C) Polypropylene D) Polyethylene
A) Brittleness B) Elasticity C) Rigidity D) Viscosity
A) Polymerization B) Cross-linking C) Plasticization D) Crystallization
A) Polylactic acid (PLA) B) Polystyrene C) Polyethylene D) Polypropylene
A) Toughness B) Elasticity C) Stiffness D) Hardness
A) Polystyrene B) Polyvinyl chloride (PVC) C) Cellulose D) Polyethylene
A) Isolated monomer unit B) Large molecule, such as a polymer, composed of repeating structural units C) Non-reactive substance D) Small molecule with a single atomic structure
A) Plasticization B) Copolymerization C) Thermal degradation D) Annealing
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
A) A large molecule composed of repeated structural units B) A non-reactive substance C) A single atomic structure D) A small molecule
A) Compression molding B) Extrusion C) Injection molding D) Blow molding
A) Polymers that are fully crystalline B) Polymers with no distinct structural features C) Polymers that have both amorphous and crystalline regions D) Polymers with irregular chain packing
A) It indicates the tacticity of the polymer B) It determines the crystallinity of the polymer C) It controls the polymerization rate D) It refers to the number of monomer units in a polymer chain
A) They control the molecular weight of the polymer B) They strengthen the polymer matrix C) They enhance the thermal stability of the polymer D) They improve flexibility and workability of the polymer
A) Homopolymer B) Block copolymer C) Copolymer D) Composite polymer
A) Sodium polyacrylate B) Polypropylene C) Polystyrene D) Polyethylene terephthalate
A) Polymerization B) Crosslinking C) Functionalization D) Polymer degradation
A) Homopolymer B) Block copolymer C) Composite polymer D) Copolymer
A) Reduces thermal stability B) Decreases flexibility and toughness C) Generally increases strength and viscosity D) Enhances transparency
A) Polycarbonate B) Polyethylene C) Polyacrylonitrile (PAN) D) Polytetrafluoroethylene (PTFE)
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
A) Polymerization B) Depolymerization C) Polymer degradation D) Crosslinking
A) Addition polymerization B) Polycondensation C) Copolymerization D) Crosslinking
A) It enhances the thermal stability of polymers B) It increases the tensile strength of polymers C) It promotes crosslinking in polymers D) It can cause degradation and discoloration of polymers
A) The temperature at which a polymer changes from a hard and brittle state to a rubbery state B) The temperature at which a polymer melts C) The temperature at which a polymer combusts D) The temperature at which a polymer degrades |