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摘要: 近几年，光致氧化还原调控的可控自由基聚合得到了迅速发展，其适用单体范围广、反应条件温和，为合成聚合物和功能高分子材料提供了新方法。本综述对光致氧化还原调控活性聚合进行了总结与探讨，归纳整理了多种单体聚合的最新研究进展，为研究人员探索光催化聚合反应、设计合成功能高分子材料提供了新思路。Abstract: In recent years, the controlled radical polymerization through photoredox catalysis has been developed rapidly. The extension of the suitable monomer range and the optimization of reaction conditions make this method a useful way to synthesize functional polymer materials. In this review, the recent progress in photoredox controlled living polymerization was summarized, and some representative examples involving the use of monomer types were discussed. We hope this review can provide researchers with new ways and ideas for designing novel photopolymerization and functional polymer materials.
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Key words:
- photoredox /
- radical polymerization /
- polymer synthesis
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Figure 2. Selected photoredox catalysts used in photoredox-controlled radical polymerization of (meth)acrylates and (meth)acrylamides
Figure 3. Heterogeneous photoredox gel catalyst used in logical-controlled radical polymerization
Figure 4. Photoredox-controlled radical polymerizations of (meth)acrylates and (meth)acrylamides applied in different directions
Figure 7. Photoredox-controlled radical polymerization of semifluorinated (meth)acrylates
Table 1. Photoredox catalysts used in photoredox-CRP1)
PC Eox* (PC·+/PC*) Eox(PC·+/PC) τf2)/ns τISC3)/μs φf2)/% φISC3)/% ref. Ir(ppy)3 -1.73 0.77 1.9 100 [49] Ir(ppy)3-2 -0.89 1.69 2.3 68 [75] Ru(bpy)32+ -0.81 1.29 1.1 100 [76] EY4) -1.60 0.72 2.1 48 32 [77] RB4) -0.68 1.09 0.5 9 77 [78] Perylene -1.87 0.98 5.5 5 000 3.6 2 [79-81] Ph-PTZ -2.10 0.68 4.5 420 1 [57, 70] 4CzIPN -1.06 1.50 18 [82-85] BPBB-PTZ5) -1.94 0.76 4.7 61 [72] DN-DHPZ -1.64 0.23 [86-87] DBN-PXZ -1.80 0.65 480 [85, 88] 1) Reduction potentials (V vs. standard calomel electrode (SCE)) of photoredox catalysts in MeCN; 2) Singlet state was determined at 298 K; 3) Triplet state was determined at 77 K; 4) Determined in methanol; 5) Determined in DMF; Ir(ppy)3-2: [Ir(dF(CF3)ppy)2(dtbbpy)](PF6); EY: Eosin Y; RB: Rose Bengal; 4CzIPN: 2, 4, 5, 6-tetra(9H-carbazol-9-yl)isophthalonitrile; BPBB-PTZ: 10-([1, 1′-biphenyl]-4-yl)-3, 7-bis(4-butylphenyl)-10H-phenothiazine; DN-DHPZ: 5, 10-di(naphthalen-1-yl)-5, 10-dihydrophenazine; DBN-PXZ: 3, 7-di([1, 1′-biphenyl]-4-yl)-10-(naphthalen-1-yl)-10H-phenoxazine 
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