CAIE A-Level Chemistry 35.1.3 Repeat Units of Condensation Polymers
Practise converting given monomers into one exact polyester or polyamide repeat unit with correct boundaries.
- Syllabus
- 2028–2030
- Course
- Chemistry 9701
- Level
- A2
Exam points
- identify complementary functional groups and place the new ester or amide linkage between monomer residues
- include each monomer-derived carbon skeleton once when the requested answer is exactly one repeat unit
- place continuation bonds through the chain backbone rather than ending the repeat unit with OH, NH2 or COOH
35.1.3—The repeat unit of a condensation polymer question 1
[Maximum number: 2]
Copper is a transition element and has atomic number 29.
Under certain conditions, ethane-1,2-diamine reacts with ethanedioic acid, HO2CCO2H, to form the polymer Z.
Draw the structure of this polymer, Z, showing two repeat units.
amide bond, displayed or –CONH–
rest of the molecule with continuation bonds
O
O
H
N
N
H
O
H
N
O
N
H
1
1
All question bank results loaded