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    殷盼, 王武龙, 夏蕾, 杲云, 曹红亮. 基于可回收含氟卟啉催化剂的PET-RAFT聚合研究[J]. 华东理工大学学报(自然科学版), 2022, 48(4): 503-510. DOI: 10.14135/j.cnki.1006-3080.20210410005
    引用本文: 殷盼, 王武龙, 夏蕾, 杲云, 曹红亮. 基于可回收含氟卟啉催化剂的PET-RAFT聚合研究[J]. 华东理工大学学报(自然科学版), 2022, 48(4): 503-510. DOI: 10.14135/j.cnki.1006-3080.20210410005
    YIN Pan, WANG Wulong, XIA Lei, GAO Yun, CAO Hongliang. PET-RAFT Polymerization Based on Recyclable Fluorinated Porphyrin Catalyst[J]. Journal of East China University of Science and Technology, 2022, 48(4): 503-510. DOI: 10.14135/j.cnki.1006-3080.20210410005
    Citation: YIN Pan, WANG Wulong, XIA Lei, GAO Yun, CAO Hongliang. PET-RAFT Polymerization Based on Recyclable Fluorinated Porphyrin Catalyst[J]. Journal of East China University of Science and Technology, 2022, 48(4): 503-510. DOI: 10.14135/j.cnki.1006-3080.20210410005

    基于可回收含氟卟啉催化剂的PET-RAFT聚合研究

    PET-RAFT Polymerization Based on Recyclable Fluorinated Porphyrin Catalyst

    • 摘要: 基于5,10,15,20-四(五氟苯基)卟啉(TPPF20)合成了一种非均相光催化剂TPPF20-TPA,该催化剂可在蓝光下对单体进行光致电子/能量转移-可逆加成-断裂链转移(PET-RAFT)聚合。该聚合体系可以调节单体的转化率和聚合物分子量,开关光源还可以控制反应进程,具有较好的单体适用性,并且生成的聚合物链末端具有较好的端基保留程度。TPPF20-TPA可以循环用于3个独立的聚合反应,单体转化率未显著降低。

       

      Abstract: A heterogeneous photocatalyst TPPF20-TPA based on 5, 10, 15, 20-tetrakis (pentafluorophenyl) porphyrin (TPPF20) was synthesized, which could be used in photo-induced electron/energy transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization under the radiation of blue light (λmax = 425 nm). A series of polymers with defined molecular weights and low dispersion could be obtained through the PET-RAFT polymerization process. The monomer conversion rate and the polymer molecular weight were detected by 1H-NMR and GPC. Through these experiments, the reaction process of the catalyst was compared under different light sources, different monomer relative concentrations or different monomer conditions. The results showed that TPPF20-TPA could catalyze the polymerization of common monomers (MMA,GMA,BZMA), making the reaction process controllable, and its insolubility in common solvents (e.g. ethanol, dichloromethane, dimethyl sulfoxide) could be used for 3 independent PET-RAFT polymerizations reactions without significant reduction in polymerization efficiency.

       

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