U3-2 - Plastics Flashcards

1
Q

Polymers

A

Long chain molecules formed by joining together a large number of small molecules called monomers.

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2
Q

Monomers

A

Small molecules which can be joined together to make polymers.

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3
Q

How are polymers named?

A

By adding ‘poly’ to the monomer name.

(e.g. ethene → polyethene)

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4
Q

If you have a polymer name, how do you get the monomer name?

A

Remove ‘poly’.

(E.g. polyethene → ethene)

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5
Q

Addition polymerisation

A

A chemical reaction in which unsaturated monomers are joined, forming a polymer.

(addition reaction = only 1 product made)

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6
Q

Name the type of reaction that occurs when alkenes join to form a polymer.

A

Addition polymerisation

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7
Q

How do you draw the polymer formed from these molecules?

A
  1. Remove double bonds.
  2. Draw bonds between molecules.
  3. Draw at least one end bond.
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8
Q

What is wrong with this polymer structure?

A

No end bonds shown. Should be:

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9
Q

Repeating unit

A

The shortest section of a polymer chain which, if repeated, would yield the complete polymer chain.

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10
Q

Identify the repeating unit

A
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11
Q

Identify the monomer

A
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