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WorksheetsPolymers Chemistry
Total questions: 25
Worksheet time: 2hrs 10mins
A chain of repeating units (called monomers)
monomer
dimer
replicate
polymer
A polymer made in the laboratory (or industry) usually made from petrochemicals
nature polymer
natural polymer
protein
synthetic polymer
Once formed, it can be heated and reformed over and over again
thermoset
thermoplastic
elastomer
kevlar
Which of the following is a type of natural polymer?
Sodium Alginate
poly vinyl acetate
polystyrene
polytetrafluoroethylene
Which of the following determine the properties of a polymer?
chemical nature of the monomer
length of the polymer chain
how the monomers are joined together
All of the above
The birefringence effect that occurs when a polymer is viewed between two polarizing filters represents the _________________ regions of the polymer.
Crystalline
Amorphous
Cross-Linked
Branched
A thermoplastic polymer will be ______________________.
below its glass transition temperature.
soft and flexible
rigid and brittle
translucent
rubbery
Which of these is the best example of how the polymer molecules are arranged in Teflon tape?
none of the above
Polymers are huge chains of repeating organic units called ___
single cells
monomers
lone pairs
base units
A polymer that is irreversibly hardened by curing, like polyurethane or Bakelite, is called ___
reinforced
thermoplastic
thermoset
fortified
a polymer that is usually made by living things
nature polymer
natural polymer
protein
synthetic polymer
Synthetic polymers are made from:
Wood
Plastic
Trees
Fossil fuels
The process by which polymers and plastics are made is called… ?
Plastication
Polymerisation
Thermocation
Carbonification
Composites combined can have these properties
stiffness
conductivity
corrosion resistance
all of the above
Plastics are composites?
Obviously
Are you kidding, no
Perhaps, not all of them are
One disadvantage of Injection Molding is
Tooling Cost
Tight Tolerances
No post process needed
Low volumes
Engineering polymers are designed to
Improve strength
Decrease process cost
Be mass produced
All of the above
The addition of water is called...
Halogenation
Hydrogenation
Hydration
Dehydration
What are the benefits of hydrogenation?
Increases the melting point
Makes fats healthier
Adds more hydrogren
Decreases the melting point
