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Chemical Engineering - Polymer Technology

Exercise : Polymer Technology - Section 5
26.
Which of the following is not an elastomer ?
Polyisoprene
Neoprene
Nitrile-butadiene
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically
polymethyl methacrylate (PMMA).
Polytetraflouroethylene(PTFE).
polycarbonates.
phenolic resins.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
__________ is a copolymer.
styrene butadiene rubber (SBR)
Neoprene
PVC
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Polyvinyl chloride (PVC)
is produced by polycondensation reaction.
uses either emulsion or suspension polymerisation methods.
can be made thermosetting by adding a plasticiser.
softening temperature is 200°C.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Which of the following is not a condensation polymer ?
Bakelite
Melamine polymer
Polymethylmethacrylate (PMMA)
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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