Sodium crown ether Salen Schief base isobi-metal condensation complex, preparation and use thereof
A Schiff base, bimetallic technology, applied in the polymer field, can solve the problems of limited use, difficult recovery and reuse, etc.
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Embodiment 1
[0032] Embodiment 1, preparation of crown ether sodium-Salen Schiff base cobalt bimetallic polycondensation complex
[0033] ① Firstly, polycondensation reaction is carried out by 4', 5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 and di-m-dibenzocrown sulfonyl chloride to obtain solid polycondensation type Polymer (Sal-2NaCrown): fully dissolve 4',5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 in NaOH aqueous solution, under nitrogen protection, 30°C, Add the chloroform solution of bis-m-dibenzocrown sulfonyl chloride dissolved with 4', 5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 equimolar amount under high-speed stirring , kept the temperature constant, reacted for 1 hour, filtered with suction, washed with water, chloroform and DMF respectively, and dried in vacuum at 60°C for 72 hours to obtain a deep yellow flaky solid polycondensation polymer.
[0034] ② Reaction of the solid polycondensation polymer (Sal-2NaCrown) with the transition metal cobalt acetate to...
Embodiment 2
[0035] Embodiment 2, preparation of crown ether sodium-Salen Schiff base cobalt bimetallic polycondensation complex:
[0036] ① Firstly, polycondensation reaction is carried out by 4', 5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 and di-m-dibenzocrown sulfonyl chloride to obtain solid polycondensation type Polymer (Sal-2NaCrown): Fully dissolve 4',5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 in NaOH aqueous solution, under nitrogen protection at 15°C, at high speed Stir and add the chloroform solution of two-m-dibenzocrown sulfonyl chloride dissolved with 4', 5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 molar weight 2 times , kept the temperature constant, reacted for 3 hours, filtered with suction, washed with water, chloroform, and DMF respectively, and dried in vacuum at 90°C for 48 hours to obtain a dark yellow flaky solid polycondensation polymer.
[0037] ② Reaction of the solid polycondensation polymer (Sal-2NaCrown) with the transition metal cobalt acet...
Embodiment 3
[0038] Embodiment 3, preparation of crown ether sodium-Salen Schiff base cobalt bimetallic polycondensation complex:
[0039] ① Firstly, polycondensation reaction is carried out by 4', 5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 and di-m-dibenzocrown sulfonyl chloride to obtain solid polycondensation type Polymer (Sal-2NaCrown): fully dissolve 4',5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 in NaOH aqueous solution, under nitrogen protection, 0°C, Add the chloroform solution dissolved with 4',5'-bis(2-hydroxybenzylideneimino)benzo-15-crown-5 molar amount of 3 times bis-m-dibenzocrown sulfonyl chloride with high-speed stirring , kept the temperature constant, reacted for 5 hours, filtered with suction, washed with water, chloroform, and DMF respectively, and dried in vacuum at 120°C for 24 hours to obtain a dark yellow flaky solid polycondensation polymer.
[0040] ② Reaction of the solid polycondensation polymer (Sal-2NaCrown) with the transition metal cobalt aceta...
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