Which of the following has cross-linked polymer chains ?
(a) bakelite (b) polyester (c) PVC (d) nylon
Which of the following plastics do not have cross-links between their polymer chains? A. Nylon B. Melamine C. Polyvinyl Chloride D. Bakelite
Which of the following is not a thermoplastic polymer ?
(a) polyester (b) melamine (c) nylon (d) polyvinyl chloride
Which of the following plastics do not have cross-links between their polymer chains?
A. Nylon B. Melamine C. Terylene D. Bakelite
(a) A and B (b) B and C (c) A and C (d) C and D
Which of the following fibre is made of a large number ester units.
Teflon . Pvc. Bakelite . Polyester