A) Polymerization B) Condensation C) Oxidation D) Evaporation
A) Polycarbonate B) Polyethylene terephthalate (PET) C) Polypropylene D) Polyethylene
A) Polyvinylidene chloride B) Polycaprolactone C) Polyvinyl chloride D) Polyvinyl alcohol
A) Polyvinyl chloride (PVC) B) Polyethylene C) Polystyrene D) Polypropylene
A) Polypropylene B) Polystyrene C) Polyvinyl chloride D) Polyimide
A) Polyethylene terephthalate B) Polystyrene terephthalate C) Polybutylene terephthalate D) Polypropylene terephthalate
A) Polycarbonate B) Polyethylene C) Polyetheretherketone (PEEK) D) Polypropylene
A) Cross-linking B) Vulcanization C) Polymerization D) Plasticization
A) Polystyrene B) Polyethylene C) Polycarbonate D) Polypropylene
A) Polypropylene B) Polyethylene C) Polycarbonate D) Polyester
A) Brittleness B) Elasticity C) Viscosity D) Rigidity
A) Cross-linking B) Crystallization C) Polymerization D) Plasticization
A) Polylactic acid (PLA) B) Polystyrene C) Polypropylene D) Polyethylene
A) A single atomic structure B) A large molecule composed of repeated structural units C) A small molecule D) A non-reactive substance
A) The temperature at which a polymer degrades B) The temperature at which a polymer combusts C) The temperature at which a polymer melts D) The temperature at which a polymer changes from a hard and brittle state to a rubbery state
A) A polymer without crosslinks B) A single polymer chain C) A mixture of two or more polymers D) A polymer with different end groups
A) It is a measure of the polymer's branching B) It affects the glass transition temperature of the polymer C) It influences the physical and mechanical properties of the polymer D) It determines the tacticity of the polymer
A) Injection molding B) Compression molding C) Extrusion D) Blow molding
A) They control the molecular weight of the polymer B) They strengthen the polymer matrix C) They improve flexibility and workability of the polymer D) They enhance the thermal stability of the polymer
A) Hardness B) Elasticity C) Toughness D) Stiffness
A) Decreases flexibility and toughness B) Generally increases strength and viscosity C) Enhances transparency D) Reduces thermal stability
A) Polymers that have both amorphous and crystalline regions B) Polymers with no distinct structural features C) Polymers with irregular chain packing D) Polymers that are fully crystalline
A) Small molecule with a single atomic structure B) Non-reactive substance C) Isolated monomer unit D) Large molecule, such as a polymer, composed of repeating structural units
A) It can cause degradation and discoloration of polymers B) It promotes crosslinking in polymers C) It enhances the thermal stability of polymers D) It increases the tensile strength of polymers
A) It determines the crystallinity of the polymer B) It controls the polymerization rate C) It refers to the number of monomer units in a polymer chain D) It indicates the tacticity of the polymer
A) Depolymerization B) Polymerization C) Polymer degradation D) Crosslinking
A) Annealing B) Thermal degradation C) Plasticization D) Copolymerization
A) Polyacrylonitrile (PAN) B) Polyethylene C) Polycarbonate D) Polytetrafluoroethylene (PTFE)
A) Polyethylene B) Cellulose C) Polyvinyl chloride (PVC) D) Polystyrene
A) Functionalization B) Crosslinking C) Polymerization D) Polymer degradation
A) Copolymer B) Block copolymer C) Composite polymer D) Homopolymer
A) Composite polymer B) Block copolymer C) Homopolymer D) Copolymer
A) Polystyrene B) Polypropylene C) Sodium polyacrylate D) Polyethylene terephthalate
A) Crosslinking B) Addition polymerization C) Polycondensation D) Copolymerization |