Condesation polymers Flashcards
When does a condensation reaction occur?
When two moecules react together and a small molecule, often water of hydrogen chloride, is elimination
e.g. esters are formed when carboxylic acids and react together, water is released
What are condensation polymersusually made from?
two different monomers, each of which has two functional groups
both functional groups can react, forming long-chain polymerrs
polyester, polyamides and polypeptides are all examples of condensation polymers
What is the structure of polyester?
has the ester linkage -COO- repeated over and over again.
How is polyester made?
diols are usuel, which have two -OH groups, and dicarobxylic acids, which have two -COOH groups
formed by condensation reactions
diol -dicarboxylic acid - diol…
What is an amide?
an amide is formed when a carboxylic acid and a amine react together
How are polyamides made?
polymadies have the linkage -CONH- repeated over and over
to make polyamides from two different monomors, a diaminoalkane reacts with a dicarboxylic acid
