Copolymer containing diketopyrrolopyrrole and perylene diimide, and preparation method and application thereof
A technology of perylenetetracarboxylic diimide and diketopyrrolopyrrole, applied in the field of copolymers containing diketopyrrolopyrrole and perylenetetracarboxylic diimide and its preparation, can solve the problem of low carrier Problems such as mobility, device spectral response mismatch, and low collection efficiency of carrier electrodes
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Example Embodiment
[0038] In addition, the present embodiment also provides a method for preparing a copolymer containing diketopyrrolopyrrole and perylenetetracarboxylic diimide, comprising the following steps:
[0039] In step 1, compound A and compound B are provided, and the structural formula of compound A is: The structural formula of compound B is: where R 1 for C 1 ~C 20 the alkyl or R 2 , R 3 , R 4 for H and C 1 ~C 20 Alkyl or C 1 ~C 20 alkoxy, R 5 , R 6 , R 7 is H or C 1 -C 20 the alkyl group.
[0040] Step 2, under anaerobic conditions, compound A and compound B are heated and refluxed in a catalyst and a solvent according to a molar ratio of 1 to 2:1 for 24 to 72 hours, and after separation and purification, diketopyrrolopyrrole and perylene are obtained. Copolymers of tetracarboxylic acid diimides.
[0041] Preferably, in this embodiment, the catalyst is an organic palladium catalyst or a mixture of an organic palladium catalyst and an organic phosphine ligand. ...
Example Embodiment
[0054] Example 1: Dithiophene-pyrrolo[3,4-c]pyrrole diketo-N,N'-dioctyl-3,4,9,10-perylenetetracarboxylic acid diimides of this example The copolymer has the following structural formula:
[0055]
[0056] The preparation process of above-mentioned polymer is as follows:
[0057] The synthesis of the compound N,N'-dioctyl-1,7-dibromo-3,4,9,10-perylenetetracarboxylic acid diimide, the preparation process is as follows:
[0058]
[0059] Under nitrogen protection, 1 mmol of n-octylamine was added to 15 mL of propionic acid solution containing 0.1 mmol of 1,7-dibromo-3,4,9,10-perylene dianhydride, and refluxed overnight; after the reaction was completed, cooled to room temperature , the reaction solution was poured into aqueous sodium hydroxide solution, extracted with chloroform, the organic phase was collected and the organic solvent was removed to obtain a solid substance that was washed with ethyl acetate and then dissolved in chloroform. The obtained solution was subje...
Example Embodiment
[0066] Example 2: Dithiophene-pyrrolo[3,4-c]pyrrole diketo-N,N'-bis(1-octylnonyl)substituted-3,4,9,10-perylenetetracarboxylic acid of this example The diimide copolymer has the following structural formula:
[0067]
[0068] The preparation process of above-mentioned polymer is as follows:
[0069] The synthesis of N,N'-bis(1-octylnonyl)-1,7-dibromo-3,4,9,10-perylenetetracarboxylic diimide, the preparation process is as follows:
[0070]
[0071] Under nitrogen protection, 1 mmol (1-Octylnonylamine) was added to 15 mL of a propionic acid solution containing 0.1 mmol of 1,7-dibromo-3,4,9,10-perylene dianhydride and refluxed overnight. After the reaction, cooled to room temperature, poured the reaction solution into aqueous sodium hydroxide solution, extracted with chloroform, collected the organic phase and removed the organic solvent to obtain a solid substance washed with ethyl acetate and then dissolved in chloroform, and subjected to alumina column chromatography. ...
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