Polymers

Question 1

What are polypeptides made of

Answer 1

Amino acids

Question 2

What are polyamides made of

Answer 2

Diamine and dicarboxylic acid

Question 3

What are polyesters made of

Answer 3

Diol and dicarboxylic acid

Question 4

What link do polyamides and polypeptides contain

Answer 4

-CONH-

Question 5

What link do polyesters contain

Answer 5

-COO ester link

Question 6

What type of polymer is kevlar

Answer 6

Polyamide

Question 7

What type of polymer is terylene

Answer 7

Polyester

Question 8

Properties and uses of kevlar

Answer 8

Lightweight but strong
Bulletprood vests and car tyres

Question 9

Nylon 6,6 properties and uses

Answer 9

Strong robust fabric
Ropes, carpets and clothing

Question 10

Terylene use

Answer 10

Plastic bottles

Question 11

If a polymer is eaisly hydrolysed does this mean that it will be easy to biodegrade

Answer 11

Yes

Question 12

Where is the polarity in polymers

Answer 12

On polar C=O and C-N bonds

Question 13

Which type of polymer is stronger and why

Answer 13

Condensation
Delta charged molecules due to polar bonds mean that hydrogen bonds form within parts of the chain increasing BP and strength

Question 14

Which type of polymer breaks down more easily in water and why

Answer 14

Condenation due to their polar bonds

Question 15

General uses of condensation polymers

Answer 15

• Non stick pan coatings
• Plastic bottles
• Fabric

Question 16

Name three methods of disposal of plastics

Answer 16

Recyling, Incineration and Landfill

Question 17

Negatives of landfill

Answer 17

• Most polymers aren’t biodegradable
• Methane is produced when plastics are broken down
• Water contamination
  -Running out of space

Question 18

Negatives of incineration

Answer 18

Toxic fumes
HCl from PVC

Question 19

Postivies of incineration

Answer 19

Can be used to generate electricity and reduces reliance on landfill

Question 20

Name two ways plastics can be recycled

Answer 20

Melt and remould
Crack polymers down to monomers to be used as organic feedstock

Question 21

Advantages of recycling

Answer 21

Cheaper to recycle
Less CO2 produced from recycling than incineration
Reduces reliance on landfill and non-renewable resources

Question 22

Disadvantages of recycling

Answer 22

Plastics can be contaminated and not be able to be recycled
Difficult due to the wide variety of plastics
Expensive