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Crude oil > Polymerisation > Flashcards

Polymerisation Flashcards

1
Q

Man-made plastics are made from…

A

polymers

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2
Q

what is a monomer

A

a small molecule

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3
Q

A polymer is made from…

A

lots of monomers joined together.

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4
Q

Monomer molecules usually contain

A

carbon atoms

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5
Q

Monomers can be joined together to make polymers by…

A

high pressures

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6
Q

When monomers are joined together we call the reaction…

A

polymerisation

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7
Q

Different types of monomers can be used to create

A

different polymers

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8
Q

Different polymers have different…

A

properties

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9
Q

List some properties of different polymers

A

How strong, stretchy and easy to mould they are.

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10
Q

Which polymer are plastic milk bottles made from and why?

A

High Density Polyethene because it is strong and rigid.

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11
Q

Which polymer are plastic bags and squeezy bottles made from and why?

A

Low Density Polyethene because they are light and stretchable.

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12
Q

Why should low density polyethene not be used for anything that will get hot?

A

Low density polyethene has a low melting point

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13
Q

Describe the properties of PVC

A

Strong
Durable
Can be made rigid OR stretchy

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14
Q

What is rigid PVC used to make?

A

window frames and piping

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15
Q

What is stretch PVC used to make?

A

synthetic leather

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16
Q

What is polystyrene foam used in?

A

to protect things in packaging

Coffee cups

17
Q

Why is polystyrene foam used to make coffee cups?

A

Because polystyrene is a good thermal insulator

18
Q

Plastic kettles are made from polymers such as _________ and ________ because

A

melamine resin and polypropene because they are heat resistant.

19
Q

What does synthetic mean?

A

man made

20
Q

Cotton, wool and silk have been replaced by which synthetic fibres?

A

nylon and polyester

21
Q

What are the advantages of synthetic fibres>

A

lighter
more durable
water-resistant
cheaper

22
Q

What are the disadvantages of synthetic fibres?

A

They aren’t breathable

Uncomfortable against the skin.

23
Q

Wood has been replaced by which synthetic material?

A

Rigid PVC

24
Q

What are the advantages of rigid PVC window frames?

A

Weather-resistant
Strong
Durable
Window frames more secure and don’t need to be painted

25
Q

What is the disadvantage of rigid PVC window frames?

A

They do not look as good as wooden frames.

Crude oil (6 decks)

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