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12th Grade IB Chemistry
Condensation Reactions
IB Chemistry Power Points
Topic 20Organic Chemistry
www.pedagogics.caCondensation Reactions Big IdeaTwo smaller molecules combine to form one larger molecule.
A small molecule (usually water, is eliminated in the process)
2Condensation Reactions Big IdeaTwo smaller molecules combine to form one larger molecule.
A small molecule (usually water, is eliminated in the process)
3
Condensation Reactions Big IdeaTwo smaller molecules combine to form one larger molecule.
A small molecule (usually water, is eliminated in the process)
4Esterification RCOOH + ROHEsters have distinct fruity smells.
Used extensively in industry for fragrance and flavoring.
The esterification reaction is also important in formation of polymers
5Amide formation - RCOOH + RNH2
6
Condensation PolymerizationRecall polymers are long chains of subunits called monomers.
If reacting molecules each have two functional groups that can undergo condensation, a polymer chain can form.
Consider:
ethane-1,2-diol andbenzene-1,4-(ethylene glycol)dicarboxylic acid
7Formation of Terylene (Dacron)
Monomer subunit would look like this.
8Formation of Terylene (Dacron)
+ a bunch of H2O9Polymerization reactions nylon 6,6H2N(CH2)6NH21,6 diamino - hexaneHOOC(CH2)4COOHhexan dioic acid+
10Polymerization reactions nylon 6,6
11Proteins - polypeptidesGeneral formula of an amino acid monomer
12