Polycaprolactam (Nylon – 6) is produced by the condensation polymerisation of caprolactam at 240-280°C in which the conversion of caprolactam is about ______________ percent?

Related Mcqs:

1. 90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of _____________ °C?

   A. -5
   B. 10-30
   C. 250-280
   D. 500-600

2. Condensation polymerisation of caprolactam is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6?

   A. -20 to 25
   B. 50 to 75
   C. 100 to 150
   D. 250-280

3. Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation ?

   A. PVC
   B. Bakelite
   C. PTFE
   D. Epoxy resin

4. Caprolactam, a raw material for the manufacture of nylon-6, is produced from_______________?

   A. Phenol
   B. Naphthalene
   C. Benzene
   D. Pyridine

5. 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

6. ______________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine?

   A. Epoxy
   B. Amino
   C. Alkyd
   D. Phenolic

7. The conversion of caprolactam in the above case is about ____________ percent?

   A. 25
   B. 50
   C. 70
   D. 90

8. Phenol formaldehyde is produced by condensation polymerisation. It is also known as_________________?

   A. Teflon
   B. Bakelite
   C. Polyester
   D. Nylon-66

9. Nylon-6 as compared to nylon 66 has lower ?

   A. Abrasion resistance
   B. Thermal stability
   C. Adhesion to rubber
   D. Hardness

10. Nylon-66 compared to nylon-6 has __________________?

    A. Lower melting point
    B. More abrasion resistant properties
    C. Higher hardness
    D. All A., B. and C.