Synthetic method of oligomeric p-phenylacetylene high polymer photovoltaic material with supply-absorb electronic units alternately connected
A technology of poly-p-phenylene vinylene and photovoltaic material is applied in the synthesis field of poly-p-phenylene vinylene polymer photovoltaic material, which can solve the problem that the photovoltaic performance of poly-p-phenylene vinylene is rarely studied, and achieve the effect of good photo-oxidative stability.
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Embodiment 1
[0024] Step 1: Under nitrogen protection, 70mg (0.18mmol) of monomer 1,4-dioctyloxy-2,5-diethynylbenzene, 81mg (0.18mmol) of monomer 5,8-dibromo-2 , 3-Diphenylbenzopyrazine, 8.4mg (7.2×10 -3 mmol, 4%mmol) of catalyst tetraphenylphosphine palladium and 1.4mg (7.2×10 -3 mmol, 4%mmol) catalyst cuprous iodide four kinds of substances join in the mixed solution of 2ml anhydrous triethylamine and 15ml anhydrous toluene;
[0025] Step 2: After passing nitrogen for one hour, heat up to 80°C and stir for 24 hours;
[0026] Step 3: Cool to room temperature, add 300ml of methanol dropwise, and collect the precipitate;
[0027] Step 4: Dissolve the precipitate in 5ml of toluene, filter and precipitate the filtrate with 130ml of methanol, then collect the precipitate and dry it to obtain yellow-green poly[1,4-dioctyloxybenzene-2,5- Diacetylene-(2,3-diphenylbenzopyrazine-5,8-diethyne)]ethynylene product.
Embodiment 2
[0029] Step 1: Under nitrogen protection, 70mg (0.18mmol) of monomer 1,4-dioctyloxy-2,5-diethynylbenzene, 81mg (0.18mmol) of monomer 5,8-dibromo-2 , 3-Diphenylbenzopyrazine, 8.4mg (7.2×10 -3 mmol, 4%mmol) of catalyst tetraphenylphosphine palladium and 1.4mg (7.2×10 -3 mmol, 4%mmol) catalyst cuprous iodide four kinds of substances join in the mixed solution of 2ml anhydrous diisopropylamine and 15ml anhydrous toluene;
[0030] Step 2: After passing nitrogen for one hour, heat up to 70°C and stir for 24 hours;
[0031] Step 3: Cool to room temperature, add 300ml of methanol dropwise, and collect the precipitate;
[0032] Step 4: Dissolve the precipitate in 10ml of tetrahydrofuran, filter and precipitate the filtrate with 130ml of methanol, then collect the precipitate and dry it to obtain yellow-green poly[1,4-dioctyloxybenzene-2,5- Diacetylene-(2,3-diphenylbenzopyrazine-5,8-diethyne)]ethynylene product.
[0033] (2) Poly[1,4-dioctyloxybenzene-2,5-diethyne-(dibenzo[a,c]phena...
Embodiment 3
[0036] Step 1: Under nitrogen protection, 70 mg (0.18 mmol) of monomer 1,4-dioctyloxy-2,5-diethynylbenzene, 79 mg (0.18 mmol) of monomer 10,13-dibromodibenzo [a,c]phenazine, 8.4mg (7.2×10 -3 mmol, 4%mmol) catalyst tetrakistriphenylphosphine palladium and 0.5mg (1.8×10 -3 mmol, 1%mmol) catalyst cuprous iodide four kinds of substances join in the mixed solution of 2ml anhydrous diisopropylamine and 15ml anhydrous toluene;
[0037] Step 2: After passing nitrogen for one hour, heat up to 80°C and stir for 24 hours;
[0038] Step 3: Cool to room temperature, add 300ml of methanol dropwise, and collect the precipitate;
[0039] Step 4: Dissolve the precipitate in 10ml of toluene, filter and precipitate the filtrate with 150ml of methanol, then collect the precipitate and dry it to obtain orange-red poly[1,4-dioctyloxybenzene-2,5-diethyne- (Dibenzo[a,c]phenazine-10,13-diethynyl)]ethynylene.
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