Table 1 Conditions for the synthesis of hydroquinone-substituted polyallylamine.a

From: Hydroquinone-substituted polyallylamine: redox capability for aqueous polymer–air secondary batteries and recyclability

Run

Reaction temperature (°C)

Degree of substitutionb (%)

1

40

16

2

50

29

3

60

34

4

65

43

5

80

50

  1. aReaction condition: Polyallylamine (2.54 mmol), 2,5-dihydroxybenzoic acid (2.54 mmol), and DMT-MM (2.54 mmol) in DMF (10 mL) for 10 h
  2. bThe degree of substitution was determined from the integration ratio of the peak derived from the main chain of PDA and the peak derived from substituted hydroquinone in 1H-NMR
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