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Y13 A2 Chemistry > Condensation polymerisation > Flashcards

Condensation polymerisation Flashcards

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1
Q

What does condensation polymerisation usually involve?

A

Two different types of monomers

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2
Q

What do the monomers have to have?

A

At least 2 different functional groups on the ends of the molecules

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3
Q

What is released when the monomers joined?

A

Small molecule, usually water

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4
Q

What are three examples of condensation polymers?

A

Polyamides
Polyesters
Polypeptides

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5
Q

What two molecules make up polyamides?

A

Dicarboxylic acids

Diamines

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6
Q

What type of link is formed in a polyamide?

A

Amide link

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7
Q

What is an amide link?

A

O H
ll l
C —-N

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8
Q

What is nylon 6,6 an example of?

A

Polyamide

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9
Q

What is nylon 6,6 made up of?

A

Hexanedioic acid

1,6-diaminohexane

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10
Q

What are some characteristics of nylon?

A

Strong

Resistant to abrasion

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11
Q

What is nylon used in?

A 
Clothing 
Carpet
Rope
Airbags 
Parachutes
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12
Q

What is Kevlar an example of?

A

Polyamide

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13
Q

What is Kevlar made up of?

A

Benzene-1,4-dicarboxylic acid

1,4-diaminobenzene

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14
Q

What are some characteristics of Kevlar?

A

Light

Very strong

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15
Q

What is Kevlar used in?

A

Bulletproof vests
Boat construction
Car tyres
Lightweight sports equipment

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16
Q

What are polypeptides made up of?

A

2 amino acids

17
Q

Why can amino acids react together?

A

They have an amine group one one side and a carboxylic acid group on the other

18
Q

What link forms in polypeptides?

A

Peptide (amide) link

19
Q

What are polypeptides a type of?

A

Polyamide

20
Q

What are polyesters made up of?

A

Dicarboxylic acids

Diols

21
Q

What parts of the components of a polyester react?

A

Hydroxyl group on the diol and the carboxyl group on the dicarboxylic acid

22
Q

What type of link is formed in a polyester?

A

Ester link

23
Q

What makes up an ester link?

A

O
ll
C — O

24
Q

What is terylene an example of?

A

Polyester

25
Q

What makes up terylene?

A

Benzene-1,4-dicarboxylic acid

Ethane -1,2-diol

26
Q

What are some characteristics of terylene?

A

Stable both cold and hot

27
Q

What is terylene used in?

A 
Food containers for ready meals
Plastic bottles 
Clothing 
Sheets 
Sails
28
Q

How can a polymer be turned back into its monomers?

A

Hydrolysis

Adding water

29
Q

What bonds are found within chains?

A

Induced dipoles

Permanent dipoles

30
Q

What bonds are found between chains?

A

Strong hydrogen bonds

Y13 A2 Chemistry (64 decks)

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