Condensation Polymers and Naturally Occurring Polymers
- Created by: Abc312
- Created on: 03-05-18 20:15
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- Polymers
- Condensation Polymers
- Involves monomers with two functional groups
- It is called condensation polymerisation because the monomers join and usually lose a small molecule such as water
- The simplest condensation polymers contain two monomers with each with two of the same functional group(one on each side)
- An example reaction would be:
- A diol
- Ethane diol
- n HO-CH2-CH2-OH
- n HO-?-OH
- +
- A dicarboxylic acid
- Hexanedioic acid
- n HOOC-CH2-CH2-CH2-CH2-COOH
- n HOOC-?-COOH
- ?
- Condensation Polymer
- Polyester
- (-?-OOC-?COO-)n
- +
- Water
- 2nH2O
- Water
- Polyester
- Condensation Polymer
- Hexanedioic acid
- A dicarboxylic acid
- Ethane diol
- A box ? represents the carbon chain
- n represents any number of monomers
- A diol
- The repeating unit of a polyester will always contain a carbon chain and ester links
- Naturally Occurring Polymers
- Amino Acids
- They have two different functional groups in a molecule
- They have a basic amino group, NH2
- They have an acidic carboxyl group, COOH
- They react by condensation polymerisation
- This produces polypeptides
- The simplest amino acid is glycine
- H2NCH2COOH
- This polymerises to make the polypeptide of
- (-HNCH2COO-)n and n H2O
- Chains of amino acids are called proteins
- The order of amino acids produces different proteins
- They have two different functional groups in a molecule
- Other polymers
- DNA is vital for human life
- It encodes genetic instructions
- DNA is made from two polymer chains made from four different monomers
- The monomers are called nucleotides
- DNA is vital for human life
- Amino Acids
- Condensation Polymers
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