C11: Polymerisation Flashcards

1
Q

conditions for

polymerisations reactions ?

A
  • high pressure
  • catalyst
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

eg of synthetic polymers?

A
  • plastics
  • polystyrene cups
  • nylon
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how is poly(ethene) made from ethene?

A
  • double C=C bond is BROKEN
  • Bonds with adjacent ethene monomers
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what are addition polymers?

A

formed by joining up many monomers / only occurs in monomer that contain C=C bond

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what are condesation polymers?

A

formed when 2 different monomers are linked tgt , with the removal of small molecule - water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what are polypeptides?

A
  • amine group / carboxylic acid group (in amino acids) react by condesation polymerisation to form polypeptides
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are proteins?

A

one or more long chains of polypeptides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what the effect of proteins containing different amino acids?

A
  • order of amino acids effects protein structure/properties
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

DNA structure?

A
  • consists of 4 different monomers called nucleotides , which contain bases
  • nucleotides form 2 polymer strands that intertwine - double helix
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

naturally occuring polymers for life and their monomers?

A

proteins - aminoa cids
starch - glucose
cellulose - glucose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

describe the process of condensation polymerisation?

A

Monomers with different functional groups
React and form bonds between them making chains
One small molecule is lost per per link

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

uses of addition polymers?

A

plastic bags
plastic bottles
cling film
drain pipes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

describe how addition polymer is formed from monomers?

A
  • many monomers bond together
  • to form a long chain polymer
  • double C=C bond breaks to bond to adjacent molecule
  • no other substances produced in process
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

why is biodiesel sustainable?

A
  • renewable
  • uses refined aste oils
  • waste is biodegradable
  • carbon neutral
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what does carbon neutral mean?

A

trees are replanted
- taking in CO2 in photosynthesis
- its a continous carbon cycle as Co2 is returned in combustion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly