Difference between revisions of "Condensation Polymerisation"
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====Forming Proteins (Higher)==== | ====Forming Proteins (Higher)==== | ||
: '''Condensation polymerisation''' [[Chemical Reaction|reactions]] of [[Amino Acid]]s [[product|produce]] [[Water]]. | : '''Condensation polymerisation''' [[Chemical Reaction|reactions]] of [[Amino Acid]]s [[product|produce]] [[Water]]. | ||
| − | : Each [[Amino Acid]] has an NH<sub> | + | : Each [[Amino Acid]] has an NH<sub>2</sub> [[Functional Group|group]] which acts as a [[base]] and an -COOH [[Functional Group|group]] which acts as an [[acid]]. These [[Functional Group|functional groups]] [[Chemical Reaction|react]] to [[Product|produce]] [[Polypeptide]]s and [[Water]]. |
| + | <chem>H2NCH2COOH + H2NCH2COOH -> H2NCH2COONHCH2COOH + H2O</chem> | ||
Revision as of 11:32, 19 January 2019
Contents
Key Stage 4 Higher
Meaning
Condensation polymerisation is a reaction in which monomers combine to form polymers producing a H2O or HCl molecule for each addition of a monomer.
About Condensation Polymerisation
- Condensation polymerisation reactions are called condensation reactions because they usually produce Water, but they may also produce other small molecules such as HCl.
- Condensation polymerisation reactions happen commonly in biological organisms.
Forming Polyesters
- Condensation polymerisation reactions which produce Water can happen when one end of a molecule carries an -OH group while the other end carries a -COOH group. These react together joining the molecules forming a Polyester.
- Condensation polymerisation reactions which produce Water can also happen when one molecule carries two -OH groups at either end of the molecule while the other molecule carries two -COOH groups. These two molecules react together joining the molecules forming a Polyester and producing Water.
Forming Polysaccharides
Forming Proteins (Higher)
- Condensation polymerisation reactions of Amino Acids produce Water.
- Each Amino Acid has an NH2 group which acts as a base and an -COOH group which acts as an acid. These functional groups react to produce Polypeptides and Water.
<chem>H2NCH2COOH + H2NCH2COOH -> H2NCH2COONHCH2COOH + H2O</chem>