Piperidine tertiary amine group-containing polymer, anion exchange polymer and preparation method and application thereof
A technology of polymers and tertiary amines of pyridine, which is applied in the field of polymers containing tertiary piperidine amine groups, can solve the problems of strong twisting and rotation of benzene rings, low microstructure regularity, and further improvement of mechanical strength. Achieve high mechanical strength, good main chain stability, and good ionic conductivity
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Embodiment 1
[0100] The present embodiment provides a kind of anion exchange polymer, and its structure is as follows:
[0101]
[0102] The preparation route is as follows:
[0103]
[0104] (1) Synthesis of polymers containing piperidine tertiary amine groups. Weigh 8.56g (48.0mmol) of phenanthrene in a 100mL three-necked flask, add 5.43g (48.0mmol) of N-methyl-4-piperidone, and add 10mL of dichloromethane to dissolve the reactant. Add 50 mL of a mixed acid of trifluoromethanesulfonic acid and trifluoroacetic acid (the volume ratio of the two is 12:1) at 0°C, and react for 6 hours. The viscous purple product was poured into 1M K 2 CO 3 solution, soaked at room temperature for 24 hours, filtered to obtain a white solid product, fully washed with deionized water and then dried to obtain a polymer containing piperidine tertiary amine groups.
[0105] (2) Quaternization reaction. Weigh 10.0 g of the above-mentioned intermediate polymer, add 100 mL of 1-methyl-2-pyrrolidone, dissol...
Embodiment 2
[0109] The present embodiment provides a kind of anion exchange polymer, and its structure is as follows:
[0110]
[0111] The preparation route is as follows:
[0112]
[0113] The difference between the preparation method and Example 1 is that 8.56 g of phenanthrene is replaced by 8.65 g (48.0 mmol) of 9,10-dihydrophenanthrene, and other conditions are completely the same as those of Example 1.
[0114] The number average molecular weight of the obtained anion exchange polymer was 160,000. Its H NMR spectrum is as Figure 5 As shown, the chemical shift (δ) 2.50ppm is the DMSO solvent peak, δ2.85ppm and δ3.35ppm correspond to the characteristic peaks of methylene H on the piperidine ring, and δ3.15ppm corresponds to the methyl group directly connected to the nitrogen atom The characteristic peak of H, δ7.50~7.80ppm is the multiple characteristic peaks of H on the benzene ring in the structural unit of 9,10-dihydrophenanthrene, there are three kinds of H in different ...
Embodiment 3
[0116] The present embodiment provides a kind of anion exchange polymer, and its structure is as follows:
[0117]
[0118] The preparation route is as follows:
[0119]
[0120] The difference between the preparation method and Example 1 is that 8.56g phenanthrene is replaced by 5.70g (32.0mmol) phenanthrene and 2.47g (16.0mmol) biphenyl, and other conditions are completely the same as in Example 1.
[0121] The number average molecular weight of the obtained anion exchange polymer was 185,000. Its H NMR spectrum is as Figure 6 As shown, the chemical shift (δ) 2.50ppm is the DMSO solvent peak, δ2.85ppm and δ3.35ppm correspond to the characteristic peaks of methylene H on the piperidine ring, and δ3.15ppm corresponds to the methyl group directly connected to the nitrogen atom The characteristic peaks of H, δ7.50~8.00ppm and δ8.80ppm are the multiple characteristic peaks of H on the benzene ring in the phenanthrene structural unit and the biphenyl structural unit, and ...
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Abstract
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