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.Management Sciences
Category: Polymer Technology
Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces________________?
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A. Epoxy resin
B. Polyamide
C. Alkyd resin
D. Phenolic resin
Nylon-6 as compared to nylon 66 has lower ?
A. Abrasion resistance
B. Thermal stability
C. Adhesion to rubber
D. Hardness
Starting material for the production of SBR is ____________________?
A. Ethyl alcohol
B. Ethylene
C. Both A. & B.
D. Neither A. nor B.
Alkyd resin cannot be used for making_________________?
A. Plasticiser
B. Paint & varnish
C. Fibers
D. Film forming materials
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is____________________?
A. Polyvinyl alcohol
B. Polyvinyl acetate
C. Polyvinyl butyral
D. PVC
Acrylonitrile-butadiene-styrene (ABS) copolymer, which is produced by blending styreneacrylonitrile copolymer with butadiene based elastomer, is a/an__________________?
A. Rigid foam
B. Engineering plastic
C. Thermosetting polymer
D. Spongy rubber
A copolymer of vinyl and vinylidene chloride is called_____________________?
A. Treylene
B. Orlon
C. Saran
D. Dacron
Neoprene is rendered non-inflammable, because of_____________________?
A. Its cross-linked structure
B. Its linear chain structure
C. The presence of chlorine atoms in its monomer
D. The absence of chlorine atoms in its monomer
Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding_________________?
A. Glycerol
B. Nitro cellulose
C. Camphor
D. None of these
_______________ practically possess no elasticity?
A. Vulcanite or ebonite
B. Spandex fibre
C. Polysulphide rubber
D. Epoxy resin
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