Triphenylamine isoindigo polymer containing biphenyl structure as well as preparation method and application thereof
A technology of biphenyl structure and triphenylamine, applied in the field of triphenylamine-like isoindigo polymers, can solve the problems of low solubility and narrow application range of isoindigo, and achieve obvious discoloration, excellent electrochromic performance, and high hole mobility. Effect
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specific Embodiment approach 1
[0057] Specific embodiment 1: The triphenylamine-based isoindigo polymer containing biphenyl structure in this embodiment is carbazolyltriphenylamine-based isoindigo polymer containing biphenyl structure or bis-4-tert-butyltriphenylamine containing biphenyl structure isoindigo polymer or triphenylaminoisoindigo polymer containing biphenyl structure;
[0058] Wherein the structural formula of the carbazolyl triphenylamino-isoindigo polymer containing biphenyl structure is:
[0059] In the formula, n is a positive integer;
[0060] The structural formula of two 4-tert-butyltriphenylamino-isoindigo polymers containing biphenyl structure is:
[0061] In the formula, n is a positive integer.
[0062] The structural formula of the triphenylamino-isoindigo polymer containing biphenyl structure is:
[0063] In the formula, n is a positive integer.
[0064] This embodiment has the following beneficial effects:
[0065] 1. The isoindigo unit has two strong electron-withdrawin...
specific Embodiment approach 2
[0070] Specific embodiment two: the method for the triphenylamine class isoindigo polymer containing biphenyl structure of this embodiment is carried out according to the following steps:
[0071] 1. Preparation of isoindigo derivatives:
[0072] ①. Add 6-bromoisoindole and anhydrous potassium carbonate to anhydrous N,N-dimethylformamide to form a suspension, and then inject 1-bromo-2-ethylhexyl into the suspension under a nitrogen atmosphere alkane to obtain a mixture; the mixture was stirred at 99-100°C for 14-15 hours and then poured into water, using CH 2 Cl 2 Extract as the organic phase to obtain the extracted organic phase, then add anhydrous MgSO 4 Drying is carried out, and the dried organic phase is subjected to vacuum distillation to obtain a solid product, and the solid product is separated by a chromatographic column to obtain compound M1;
[0073] The ratio of the amount of substance of anhydrous potassium carbonate and 6-bromoisoindole described in step 1. is...
specific Embodiment approach 3
[0088] Specific embodiment three: the difference between this embodiment and specific embodiment two is: the preparation method of the degassed tetrahydrofuran described in step ② is: vacuumize the three-neck round bottom flask filled with tetrahydrofuran with a vacuum pump, and then pass it into Nitrogen: Repeat vacuuming and feeding nitrogen 3 to 4 times. Others are the same as in the second embodiment.
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