'Terylene is not a
copolymer
polyester fibre
chain growth polymer
step growth polymer
C.
chain growth polymer
Terylene is a copolymer of terephthalic acid and ethylene glycol. It is a polyester fibre.
Since, it is a product of condensation polymerisation, in which molecular mass of polymer is not a whole number of monomer (due to loss of H2O molecules), so it is also called step growth polymer.
Which of the following is a condensation polymer?
[-NH-CO(CH2)5-]n
Rubber
Polyvinyl chloride
Polyethylene
The monomer used in novolac, a polymer used in paints
melamine and formaldehyde
phenol and formaldehyde
butadiene and acrylo nitrile
butadiene and styrene
Formation of terylene is an example of:
condensation polymerisation
addition polymerisation
esterification
saponification
Which of the following is not a biodegradable polymer?
Glyptol
Polyhydroxy butyrate-CO-β-hyrdoxy valerate
PHBV
Nylon 2-nylon-6
Which of the following is not true?
In vulcanisation, the rubber becomes harder and stronger
Natural rubber has 'trans' configuration at every double bond
Buna-S is a copolymer of butene and styrene
Natural rubber is 1, 4-polymer of isoprene