cellulose acetate
regenerated cellulose
cellulose nitrate
cellulose acetate butyrate
✅ The correct answer is option C.
Polymer Technology MCQs
Addition of stabiliser during PVC manufacture is done to
improve its impact strength.
improve its elasticity.
reduce the melt viscosity & glass transition temperature.
prevent its thermal degradation.
✅ The correct answer is option D.
Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styrene-acrylonitfile copolymer with butadiene based elastomer, is a/an
rigid foam
engineering plastic
thermosetting polymer
spongy rubber
✅ The correct answer is option B.
Molecular weight of polymers are in the range of
10 to 103
102-107
107-109
109-1011
✅ The correct answer is option B.
Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces
nylon-6
dacron
polyester
PVC
✅ The correct answer is option B.
The physical state in which polymers exist is
melts & rubber like state.
amorphous glassy state.
partially crystalline state.
all (a), (b) and (c).
✅ The correct answer is option D.
Pick out the wrong statement.
Addition polymers are generally formed by chain growth polymerisation.
Condensation polymers are generally formed by step growth polymerisation.
Teflon is formed by step growth polymerisation.
Bakelite is formed by step growth polymerisation.
✅ The correct answer is option C.
Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of
cold SBR
butyl rubber
Bunai N
Buna S
✅ The correct answer is option B.
Paper like thin plastic articles can be produced by
blow moulding
vacuum thermo forming
injection moulding
none of these
✅ The correct answer is option B.
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.
✅ The correct answer is option A.