Chemical Engineering - Polymer Technology
Exercise :: Polymer Technology - Section 3
26.
Cellulose content in bomboo fibre is about __________ percent.
Answer: Option C
Explanation:
27.
In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of
A. cross linked polystyrene. B. phenol formaldehyde resins. C. polyesters. D. polyamides.
Answer: Option A
Explanation:
28.
Which of the following has the weakest intermolecular forces ?
A. Polyisoprene B. Nylon-66 C. Polystyrene D. Bakelite
Answer: Option A
Explanation:
29.
Properties of a polymer is affected by the
A. chain length. B. intermolecular forces. C. branching & cross-linking. D. all (a), (b).
Answer: Option D
Explanation:
30.
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
Answer: Option C
Explanation:
