Polymerisation

Question 1

Most common way of making polymers

Answer 1

radical polymerisation

Question 2

2 types of radical polymerisation?

Answer 2

emulsion polymerisation and suspension polymerisation

Question 3

Emulsion polymerization (EP) is a way of polymerizing

Answer 3

hydrophobic monomers in water

Question 4

Chemical initiator used for hydrophobic monomers in homogeneous polymerisation.

Answer 4

AIBN: azoisobutyronitrile (hydrophobic)

Question 5

Chemical initiator used for hydrophilic monomers and emulsion polymerization

Answer 5

KPS: potassium persfulfate (hydrophilic)

Question 6

Define Propagation

Answer 6

polymers forms by the successive addition of free-radical building blocks

Question 7

Types of radical addition

Answer 7

primary radical addition, monomeric radical addition, polymeric radical addition.

Question 8

2 types of deactivation by termination

Answer 8

combination, disproportionation

Question 9

which reaction of is favoured if not sterically hindered?

Answer 9

combination.

Question 10

define deactivation

Answer 10

stop macromolecules from growing infinitely big.