Preparation method of conductive polyaniline/graphene large-area flexible electrochromic material
A conductive polyaniline and graphene technology, applied in the direction of graphene, electrolytic process, electrolytic components, etc., to achieve stable performance, good adhesion, and prevent agglomeration
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Embodiment 1
[0022] The preparation method of conductive polyaniline / graphene large-area flexible electrochromic material comprises the following steps:
[0023] 1) Under the protection of an inert gas, disperse graphene containing 2g of carboxyl groups in 800g of dimethylformamide and ultrasonically disperse in a water bath for 1h, then add 4g of toluene diisocyanate and heat at 50°C for 24h to generate a coupling reaction to introduce isocyanide Acid groups, unreacted toluene diisocyanate were removed by washing and vacuum filtration.
[0024]2) 2g graphene modified by the obtained isocyanate group is dispersed in 800g dimethylformamide solution, add 4g 4-amino-6-hydroxyl-2-methylpyrimidine and 2g triethyl acetic acid salt to obtain 2-ureido-4[1H]-pyrimidinone group, the mixture was ultrasonically stirred at 100°C for 20 h, washed and dried, then dissolved in an organic solvent to obtain a dispersion solution of graphene bonded by four hydrogen bonds.
[0025] 3) Take 2g of aniline mono...
Embodiment 2
[0027] The preparation method of conductive polyaniline / graphene large-area flexible electrochromic material comprises the following steps:
[0028] 1) Under the protection of an inert gas, disperse graphene containing 10g of carboxyl groups in 5000g of dimethylformamide and ultrasonically disperse in a water bath for 1h, then add 50g of toluene diisocyanate and heat at 50°C for 24h to generate a coupling reaction to introduce isocyanide Acid groups, unreacted toluene diisocyanate were removed by washing and vacuum filtration.
[0029] 2) 10g graphene modified by the obtained isocyanate group is dispersed in 5000g dimethylformamide solution, add 30g 4-amino-6-hydroxyl-2-methylpyrimidine and 20g triethyl acetic acid salt to obtain 2-ureido-4[1H]-pyrimidinone group, the mixture was ultrasonically stirred at 100°C for 20 h, washed and dried, then dissolved in an organic solvent to obtain a dispersion solution of graphene bonded by four hydrogen bonds.
[0030] 3) Take 20g of ani...
Embodiment 3
[0032] The preparation method of conductive polyaniline / graphene large-area flexible electrochromic material comprises the following steps:
[0033] 1) Under the protection of an inert gas, disperse graphene containing 50g of carboxyl groups in 15,000g of dimethylformamide in a water bath and ultrasonically disperse for 1h, then add 100g of toluene diisocyanate and heat at 50°C for 24h to generate a coupling reaction to introduce isocyanide Acid groups, unreacted toluene diisocyanate were removed by washing and vacuum filtration.
[0034] 2) The 50g graphene modified by the obtained isocyanate group is dispersed in 15000g dimethylformamide solution, and 150g 4-amino-6-hydroxyl-2-methylpyrimidine and 100g triethyl acetic acid are added salt to obtain 2-ureido-4[1H]-pyrimidinone group, the mixture was ultrasonically stirred at 100°C for 20 h, washed and dried, then dissolved in an organic solvent to obtain a dispersion solution of graphene bonded by four hydrogen bonds.
[0035...
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