polymers

Question 1

What are polymers?

Answer 1

Linked together monomers

Question 2

What are alkene monomers?

Answer 2

Double bond with a group or not (ethylene exception)

Question 3

Reaction conditions of cationic polymerization? What is the intermediate?

Answer 3

Reactants: alkene with EDG
Conditions: H2SO4
Product: polymer
*carbocation intermediate

Question 4

Why do you use an EDG in cationic polymerization?

Answer 4

Stabilizes carbocation intermediate

Question 5

Reaction conditions of anionic polymerization? What intermediate is formed?

Answer 5

Reactant: alkene with EWG
Conditions: Bu- or -OH
Conditions: polymer with EWG
*C- intermediate

Question 6

Why do you have a EWG for anionic polymerization?

Answer 6

Stabilizes anion intermediate

Question 7

Reaction conditions of radical polymerization?

Answer 7

Reactant: alkene with EWG or EDG
Conditions: ROOR, heat
Product: polymers with group

Question 8

Reaction conditions of metal catalyzed polymerization?

Answer 8

Reactant: alkene with R group
Conditions: metal (Ziegler-natta ex)
Product: polymer with R group

Question 9

What are the type of polymers are formed through condensation?

Answer 9

Polyamides and polyesters formed through the loss of H2O (condensation)

Question 10

What 3 molecules can react in condensation of polymers? What type of new bond is created ?

Answer 10

Dicarboxylic acid with diamine or diol. Amide bond is created