Monomers and repeating units

Question 1

What are condensation polymers made of?

Answer 1

Repeating units

Question 2

How do you work out what the repeating units are?

Answer 2

Draw the monomers next to each other
Remove an OH from the dicarboxylic acid and H from one of the amines
Join the C=O and N together to form an amide link
Take an H off of the other nitrogen atom
OH off the other -COOH group at the end