A polyphosphazene anion exchange membrane loaded with hydrogenated aromatic heterocyclic quaternary phosphonium cation units and its preparation method
An anion exchange membrane and quaternary phosphonium cation technology, which is applied in the field of anion exchange membranes for fuel cells, can solve problems such as the research on polyphosphazene anion exchange membranes that do not involve hydrogenated aromatic heterocyclic quaternary phosphonium cations, and achieve excellent alkali resistance. , the effect of good stability
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Embodiment 1
[0037] Take 1.57g of the hydrogenated aromatic heterocyclic quaternary phosphonium cation structure (p=3, q=1) shown in formula (2) and add 1.2eq of potassium carbonate into the ethanol solution, stir and react at room temperature for 24h. Afterwards, suction filtration and rotary evaporation obtain the potassium phenate sodium salt of the hydrogenated aromatic heterocyclic quaternary phosphonium cation; the above-mentioned hydrogenated aromatic heterocyclic quaternary phosphonium cation potassium phenate is added to the THF solution containing 3.48g polydichlorophosphazene, 60 ℃ reaction 48h;
[0038]Add 6.27g of unsubstituted n-amyl alcohol and 1.2eq of metal sodium into THF, react at room temperature for 6h, and then filter with suction to obtain a THF solution of n-amyl alcohol sodium salt;
[0039] Add the obtained THF solution of n-amyl alcohol sodium salt into the above solution, continue to react for 24 hours, then cool to room temperature, remove the solvent, and wash...
Embodiment 2
[0043] Take 4.70g of the hydrogenated aromatic heterocyclic quaternary phosphonium cation structure (p=3, q=1) shown in formula (2) and add 1.2eq of potassium carbonate into the ethanol solution, stir and react at room temperature for 24h. Afterwards, suction filtration and rotary evaporation obtain the potassium phenate sodium salt of the hydrogenated aromatic heterocyclic quaternary phosphonium cation; the above-mentioned hydrogenated aromatic heterocyclic quaternary phosphonium cation potassium phenate is added to the THF solution containing 3.48g polydichlorophosphazene, 60 ℃ reaction 48h;
[0044] Add 5.61g of unsubstituted n-amyl alcohol and 1.2eq of sodium metal into THF, react at room temperature for 6h, and then filter with suction to obtain a THF solution of n-amyl alcohol sodium salt;
[0045] Add the obtained THF solution of n-amyl alcohol sodium salt into the above solution, continue to react for 24 hours, then cool to room temperature, remove the solvent, and was...
Embodiment 3
[0049] Take 7.83g of the hydrogenated aromatic heterocyclic quaternary phosphonium cation structure (p=3, q=1) shown in formula (2) and add 1.2eq of potassium carbonate into the ethanol solution, stir and react at room temperature for 24h. Afterwards, suction filtration and rotary evaporation obtain the potassium phenate sodium salt of the hydrogenated aromatic heterocyclic quaternary phosphonium cation; the above-mentioned hydrogenated aromatic heterocyclic quaternary phosphonium cation potassium phenate is added to the THF solution containing 3.48g polydichlorophosphazene, 60 ℃ reaction 48h;
[0050] Add 4.95g of unsubstituted n-amyl alcohol and 1.2eq of sodium metal into THF, react at room temperature for 6h, and then filter with suction to obtain a THF solution of n-amyl alcohol sodium salt;
[0051] Add the obtained THF solution of n-amyl alcohol sodium salt into the above solution, continue to react for 24 hours, then cool to room temperature, remove the solvent, and was...
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