Multiple choice

Which of the following statements about polyamides is/are not true?

  1. PA 6/66 is made from caprolactam, hexamethylenediamine and adipic acid.
  2. PA 6I is an amorphous polymer and is made from the polymerisation of hexamethylenediamine and isosebacic acid.
  3. Trogamid from Solvay Industries is an aliphatic polyamide.

  1. Only 1

  2. Only 2

  3. 1 and 2

  4. 2 and 3

  5. 1 and 3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

1) PA 6/66 (nylon 6/66) is a copolymer and is made from caprolactam, hexamethylenediamine and adipic acid. 2) PA 6I (nylon 6I) is an amorphous polymer which is made from the polymerisation of hexamethylenediamine and isophthalic acid. PA 66/610 (nylon 66/610) is made from hexamethylenediamine, adipic acid and sebacic acid. 3) A model from Solvay Industries and Trogamid from Evonik Industries are semi-aromatic polyamides and are made from the polymerisation of hexamethylenediamine and terephthalic acid. Hence, 2 and 3 statements are false.

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