bulk polymerisation
suspension polymerisation
solution polymerisation
emulsion polymerisation
✅ The correct answer is option D.
Polymer Technology MCQs
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
teflon
bakelite
polyester
nylon-66
✅ The correct answer is option B.
Polystyrene is a light, transparent, thermoplastic material used for making
toys and combs
packaging bags
non-sticking utensils
electrical insulation
✅ The correct answer is option A.
In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is
terylene
polybutadiene
PVC
polypropylene
✅ The correct answer is option A.
Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6.
-20 to 25
50 to 75
100 to 150
250-280
✅ The correct answer is option D.
Thermosetting polymers as compared to thermoplastic polymers
are formed by addition polymerisation.
have three dimensional structure.
have linear structure.
none of these.
✅ The correct answer is option B.
Thermosplastic materials
do not soften on application of heat.
are heavily branched molecules.
are solvent insoluble.
none of these.
✅ The correct answer is option D.
Which of the following is an elastomer ?
Thiokol
Phenol formaldehyde
Urea formaldehyde
Polystyrene
✅ The correct answer is option A.
Synthetic polymer produced by using terephthalic acid and ethylene glycol is
terylene
nylon-66
PVC
polyesterene
✅ The correct answer is option A.
__________ is produced by polymerisation of chloroprene.
Thiokol (a polysulphide rubber)
Butyl rubber
Neoprene
Polyurathane rubber
✅ The correct answer is option C.