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Chemical Engineering - Polymer Technology

Exercise : Polymer Technology - Section 3
31.
In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher
densities
melting point
tensile strength
hardness, rigidity & brittleness
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Vulcanisation of rubber does not increase its
softness
oxidation resistance
weight & strength
elasticity & water solubility
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Which of the following is a copolymer ?
Polystyrene
SBR
P.T.F.E.
Polypropylene
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Styrene butadiene rubber (SBR) is never used for making
coated fabrics
front wheel tyres of aeroplanes (i.e., heavy duty tyres)
gaskets
soles of shoes
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Cross linked polymers are
thermoplastic
thermosetting
either (a) or (b)
fibres only
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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