Multipolymers based on multi-component fused ring structure and application of multipolymers in organic photoelectric device
A technology of multi-component copolymer and fused ring structure, which is applied in the field of multi-component copolymer and its application in organic photoelectric devices, can solve the problems of low molar absorption coefficient and narrow spectral absorption range, and achieve absorption and utilization, and excellent devices Performance, the effect of broadening the spectral absorption range
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Embodiment 1
[0028] Example 1: The compound TTPBT-CHO was synthesized according to the method disclosed in [Joule 2019, 3(4), 1140-1151].
Embodiment 2
[0029] Embodiment 2: the synthesis of polymerized monomer M1
[0030] Dialdehyde compound TTPBT-CHO (738mg, 0.5mmol) and compound IC-Br (683mg, 2.5mmol) were added to a two-neck round bottom flask, and the system was filled with nitrogen gas by pumping and exchanging three times. Chloroform (80 mL) and pyridine (2 mL) were added into the reaction vial with a syringe, and the reaction solution was stirred and reacted at 80° C. for 18 hours. After the reaction solution was cooled to room temperature, the crude product was purified by silica gel column chromatography with petroleum ether / dichloromethane (2:1) as the eluent to obtain compound M1 (874 mg, 88%) as a black solid. 1 H NMR (500MHz, CDCl 3 ):δ9.13(s,2H),8.84(s,1H),8.52(d,J=8.4Hz,1H),8.03(d,J=1.6Hz,1H),7.89–7.78(m,3H) ,4.77(m,4H),3.20(t,J=7.5Hz,4H),2.16(m,2H),1.91–1.83(m,4H),1.55-1.49(m,4H),1.38-1.36(m ,4H),1.33-1.23(m,28H),1.24-1.12(m,36H),1.04-0.99(m,36H),0.88-0.81(m,22H). 13 C NMR (126MHz, CDCl 3 ):δ187.32,186.91...
Embodiment 3
[0032] Example 3: Synthesis of the representative polymer PJ10:
[0033] In a 25mL dry two-necked flask, add polymerized monomers M1 (59.6mg, 0.03mmol), M2 (266mg, 0.27mmol) and M3 (147.6mg, 0.3mmol), and catalyst tris(dibenzylideneacetone)dipalladium (5.4mg), the ligand tri-o-methylphenylphosphine (8.1mg), was pumped and purged three times through a vacuum double-row tube, and the solvent chlorobenzene (6mL) was added with a syringe. The reaction solution was stirred and reacted at 140° C. for 48 hours. After returning to room temperature, the polymer solution was added dropwise into 300 mL of methanol, and the polymer precipitate was obtained by filtration. The polymer was extracted with methanol, n-hexane, dichloromethane, and chloroform successively through a Soxhlet extraction device, and the collected chloroform phase was concentrated and then precipitated in methanol, collected by filtration and dried to obtain the black target polymer PJ10 (269mg, 82%) . GPC: Mn =56...
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