Process for preparing water-soluble polysulfonated naphthylamine
A technology for sulfonated naphthylamine and water-soluble polymer is applied in the field of preparation of polysulfonated naphthylamine, which can solve the problems of tediousness, limited functional application potential of conjugated polymers, low polymer yield and the like, and achieves a simple and efficient synthesis process. , good general applicability, good solution processability effect
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[0021] Example 1
[0022] The following examples will exemplarily illustrate that the poly(7-sulfonic acid-1-naphthylamine) of the present invention is realized in an aqueous solution system using a hydrogen peroxide / ferrous sulfate redox system to initiate polymerization, following the chemical oxidation polymerization reaction route. .
[0023] Accurately measure 6mL of water into a 50mL beaker, and then add 2mL of 1mol / L NaOH solution. Accurately weigh 446.5 mg (2 mmol) of 7-sulfonic acid-1-naphthylamine and transfer it into the above-mentioned aqueous alkali solution. The blending system was stirred for 18 minutes with a magnetic stirrer to completely dissolve the monomer in the alkaline aqueous solution, and then 1mL (0.05mmol) of FeSO with a concentration of 50mmol / L was added to the beaker 4 To the solution, add 1ml (10mmol) of hydrogen peroxide in about 5 minutes. At this time, the color of the solution changes from light gray to dark brown. The beaker was sealed, and the ...
Example
[0024] Examples 2-7
[0025] The following examples will illustrate the effect of different oxygen unit ratios on the polymerization yield in the present invention.
[0026] Repeat Example 1, changing the amount of oxidant hydrogen peroxide added to make the oxygen ratios 1:1, 2:1, 3:1, 4:1, 8:1, and 10:1, respectively. The black solid powder was obtained, and the yields were 15.8%, 21.7%, 23.7%, 25.3%, 87.6%, 59.5%. The conductivity measured by the tablet method is 2.12×10 -6 S / cm, 2.12×10 -6 S / cm, 2.20×10 -6 S / cm, 2.19×10 -6 S / cm、1.25×10 -6 S / cm、0.65×10 -6 S / cm.
Example
[0027] Examples 8-10
[0028] The following examples will illustrate the effect of reaction time on polymer yield in the present invention.
[0029] Repeat Example 1 and change the reaction time so that the reaction time is 6h, 12h, 28h, respectively, to obtain black solid powder, and the yields are 44.3%, 52.5%, and 81.4%, respectively. The conductivity measured by the tablet method is 1.36×10 -6 S / cm、1.45×10 -6 S / cm, 2.12×10 -6 S / cm.
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