TRIPLE ONLY: Polymers part 2

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Last updated 8:37 PM on 4/24/26
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13 Terms

1
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What is condensation polymerisation?

Polymerisation of monomers in which each time two monomers combine, a small molecule such as water or hydrogen chloride is removed

2
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Condensation polymerisation can make____

A polyester

  • Polyester is NOT made from addition polymerisation

3
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Difference between addition polymerisation and condensation polymerisation?

  • Condensation polymerisation forms the polymer molecule and one water molecule (or hydrogen chloride molecule) per linkage

  • Condensation requires 2 types of monomers

4
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What two monomers are required for a condensation type of polymerisation?

  • A diol and a dicarboxylic acid

5
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What is a diol?

What is the structural formula of ethane-1,2-diol?

  • A diol is a compound containing two hydroxyl (—OH) groups

Structural:

  • OHCH2CH2OH

  • or CH2OHCH2OH

<ul><li><p>A diol is a compound containing two hydroxyl (—OH) groups</p></li></ul><p></p><p>Structural:</p><ul><li><p>OHCH<sub>2</sub>CH<sub>2</sub>OH</p></li><li><p>or CH<sub>2</sub>OHCH<sub>2</sub>OH</p></li></ul><p></p>
6
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<p>What is the name of this compound?</p>

What is the name of this compound?

Propane-1,3-diol

  • 3 carbon so ‘prop’

  • diol because 2 OH

  • 1,3 because OH are on carbons 1 and 3

KEY POINT

<p>Propane-1,3-diol</p><ul><li><p>3 carbon so ‘prop’</p></li><li><p>diol because 2 OH</p></li><li><p>1,3 because OH are on carbons 1 and 3</p></li></ul><p></p><p><strong>KEY POINT</strong></p><p></p>
7
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<p>What is a dicarboxylic acid?</p><p>What is this dicarboxylic acid called? Draw the displayed formula as well</p>

What is a dicarboxylic acid?

What is this dicarboxylic acid called? Draw the displayed formula as well

A carboxylic molecule with one —COOH at each end

Hexane-1,6-dioic acid

  • Hexanoic acid for carbxylic acid

  • Ending = ‘dioic acid’

<p>A carboxylic molecule with one —COOH at each end</p><p>Hexane-1,6-dioic acid</p><ul><li><p>Hexanoic acid for carbxylic acid</p></li><li><p>Ending = ‘dioic acid’</p></li></ul><p></p>
8
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Draw the equation (displayed formula) when you react ethanedioic acid and ethanediol with the polymer as the repeating unit

  • Remove the OH and H as they will form water

<p></p><ul><li><p>Remove the OH and H as they will form water</p></li></ul><p></p>
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term image
10
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Lo de buscar monomers from a polymer (en el movil

11
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As with addition polymers there are environmental issues with the disposal of condensation polymers.

Why are condensation polymers more reactive?

Because of their ester linkage

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What are biodegradable polyesters?

A polyester that is biodegradable

  • Biodegradable is being able to be broken down into smaller components

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How are biodegradable polymers made?

  • Made from lactic acid

  • Lactic acid can be obtained from corn starch and when it undergoes polymerisation it forms a biodegradable polyester