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Chemical Engineering - Polymer Technology

Exercise : Polymer Technology - Section 4
21.
Thermosetting polymers as compared to thermoplastic polymers
are formed by addition polymerisation.
have three dimensional structure.
have linear structure.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The monomer of natural rubber is
DMT
isoprene
2 methyl-1-propene
both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
polythene
PVC
rayon
polyvinyl acetate
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
epoxy resin
polyamide
alkyd resin
phenolic resin
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Dacron is a/an
addition polymer
condensation polymer
polyester
both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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