Related Questions

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
A Terylene
B Polybutadiene
C PVC
D Polypropylene
Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
A Organic peroxides
B Sulphuric acid
C Hydroflouric acid
D None of these
In condensation polymerisation as compared to addition polymerisation
A The monomers are unsaturated compounds
B No co-product is lost
C The monomers contain two functional groups
D Generally only one monomer is involved
Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is
A Nylon-66
B Teflon
C Polyester
D Bakelite
Polyesters are manufactured by the polycondensation reaction of
A Dibasic acid with dihydric alcohol
B A single monomer
C Carboxylic acid with ethylene
D Inorganic acid with ethylene glycol
__________ is produced using polycondensation reaction.
A Polythene
B Phenol formaldehyde
C Poly vinyl chloride
D None of these
Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces
A Epoxy resin
B Polyamide
C Alkyd resin
D Phenolic resin
Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is
A 7 kgf/cm2 and 70°C
B 1000 kgf/cm2 and 100°C
C 7 kgf/cm2 and 700°C
D 1 kgf/cm2 (gage) and 70°C
Condensation polymerisation of __________ produces bakelite.
A Propylene
B Phenol & formaldehyde
C Phenol & acetaldehyde
D Urea & formaldehyde
Which of the following is produced by condensation polymerisation?
A Bakelite
B Polythene
C Poly vinyl chloride
D Polystyrene

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