Edexcel A-Level Chemistry A2 19.9 Draw the Structural Formulae of the Repeat Units of the Polymers in 19 8 Questions

For repeat-unit drawings, keep the correct side groups and trailing bonds, then check whether the monomer pair forms an amide link or an addition backbone.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
A2

Exam points

  • Draw poly(ethenol) or polyamide repeat units with correct side groups and trailing bonds.
  • Convert monomers into repeat units containing the correct amide linkage.
  • Calculate percentage by mass from atoms or groups in a displayed repeat unit.

Edexcel A-Level Chemistry A2 19.9 Draw the Structural Formulae of the Repeat Units of the Polymers in 19 8 Questions question 1

[Maximum number: 1]

This question is about benzene and some of its compounds.

Semi-aromatic polyamides have high melting temperatures, high strength and rigidity and are resistant to chemical attack so they have many applications in engineering.

Draw the repeat unit of the polyamide formed from the monomers shown.
H2 N(CH2)6NH2\mathrm{H}_{2} \mathrm{~N}\left(\mathrm{CH}_{2}\right)_{6} \mathrm{NH}_{2} and

Figure for Question Edexcel A-Level Chemistry A2 19.9 Draw the Structural Formulae of the Repeat Units of the Polymers in 19 8 Questions question 1 — Edexcel A-Level Chemistry A2
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