Condensation polymers

• What type of polymers are polyesters?

  Condensation polymers
• What links are used to make polyesters?

  Ester links
• What is the first step in forming polyesters?

  Combine a dicarboxylic acid and a diol
• What type of acid is used in polyester formation?

  Dicarboxylic acid
• What type of alcohol is used in polyester formation?

  Diol
• What do the colored rectangles in molecules represent?

  The rest of the molecule
• What is formed when the dicarboxylic acid and diol combine?

  A water molecule
• What is the bond formed between the dicarboxylic acid and diol called?

  Ester link
• What is a dimer in the context of polyesters?

  A combination of two monomers
• What happens to the ends of the repeating unit in polyesters?

  They lose an OH and H atom
• Why do we use 'n' in the representation of polymers?

  To indicate the number of repeating units
• How many water molecules are formed per repeat unit in polyesters?

  Two water molecules
• Why are they called condensation polymers?

  Because they release water during formation
• What functional groups must monomers have for condensation polymers?

  At least two functional groups
• What is a real example of a polyester formation?

  Ethane dicarboxylic acid with ethane diol
• What is the name of the polyester formed from ethane dicarboxylic acid and ethane diol?

  Poly ethyl ethanoate
• Are polyesters biodegradable?

  Yes, they can break down naturally
• How do polyesters differ from addition polymers regarding biodegradability?

  Polyesters are biodegradable, addition polymers are not