文献类型：期刊文献

中文题名：基于可回收含氟卟啉催化剂的PET-RAFT聚合研究

英文题名：PET-RAFT Polymerization Based on Recyclable Fluorinated Porphyrin Catalyst

作者：殷盼[1];王武龙[1];夏蕾[1];杲云[1];曹红亮[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2022

卷号：48

期号：4

起止页码：503

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：Scopus;北大核心:【北大核心2020】；CSCD:【CSCD_E2021_2022】；

基金：上海市自然科学基金(18ZR1408300)。

语种：中文

中文关键词：含氟卟啉;非均相催化;PET-RAFT;光聚合;可回收

外文关键词：fluorinated porphyrin;heterogeneous catalysis;PET-RAFT;photopolymerization;recyclable

摘要：基于5,10,15,20-四(五氟苯基)卟啉(TPPF_(20))合成了一种非均相光催化剂TPPF-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(PETRAFT)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。TPPF_(20)-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。
A heterogeneous photocatalyst TPPF_(20)-TPA based on 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin(TPPF_(20))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(λ_(max)=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 TPPF_(20)-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.