A. Are formed by addition polymerisation
B. Have three dimensional structure
C. Have linear structure
D. None of these
Polymer Technology
Polymer Technology
A. For surface coating of automobiles & air crafts
B. For fibre making
C. As plasticiser for PVC & nitrocellulose
D. For film forming materials
A. A copolymer
B. A condensation polymer
C. Obtained by polymerising vinyl cyanide
D. All A., B. and C.
A. 5°C and 1 kgf/cm2
B. – 20°C and 1 kgf/cm2
C. 0°C and 1 kgf/cm2
D. 0°C and 3 kgf/cm2
A. Phosphorous
B. Carbon black
C. Pine oil
D. Rosin
A. Tensile strength
B. Resistance to organic solvents
C. Tackiness
D. Working temperature range
A. Decreases with increase in molecular weight
B. Decreases with increase in temperature
C. Increases with increase in temperature
D. Does not vary with temperature rise
A. Polymer termination step
B. Condensation of siloxane to silicone
C. Initial hydrolysis of silicone monomer
D. None of these
A. Hardeners
B. Anti-shrinkage agents
C. Plasticisers
D. Transparency improver
A. In a chain without the elimination of water
B. With the elimination of small amount of water
C. Of the same monomer by elimination of small molecules of water
D. None of these