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首页> 外文期刊>RSC Advances >Amide group-containing polar solvents as ligands for iron-catalyzed atom transfer radical polymerization of methyl methacrylate
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Amide group-containing polar solvents as ligands for iron-catalyzed atom transfer radical polymerization of methyl methacrylate

机译：含酰胺基的极性溶剂作为铁催化甲基丙烯酸甲酯的原子转移自由基聚合的配体

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摘要

A series of amide group-containing polar solvents, formamide (Fo), N-methylformamide (MFo), N, N'-dimethylformamide (DMF), acetamide (Ac), N-methylacetamide (MAc), N, N-dimethylacetamide (DMAc), urea, tetramethyl urea (TMU), 2-pyrrolidone (2-Py), N-methyl-2-pyrrolidone (NMP) and 5-methyl-2-pyrrolidone (MPy), were used as both solvents and ligands for iron(II)-catalyzed atom transfer radical polymerizations (ATRPs) of methyl methacrylate (MMA), with ethyl 2-bromo-2-phenylacetate (EBPA) as the initiator. Most of the polymerizations were well-controlled in character, and the structures of the polar solvents greatly affected the catalytic activity. In addition, the living features of the systems remained in the presence of limited amounts of polar solvents. Some of the polar solvents (MFo, TMU and 2-Py) were also employed for iron(III)-catalyzed activators generated by electron transfer (AGET) ATRPs of MMA, and the results were as good as those of the ATRPs.
机译：一系列含酰胺基的极性溶剂：甲酰胺（Fo），N-甲基甲酰胺（MFo），N，N'-二甲基甲酰胺（DMF），乙酰胺（Ac），N-甲基乙酰胺（MAc），N，N-二甲基乙酰胺（使用DMAc），尿素，四甲基脲（TMU），2-吡咯烷酮（2-Py），N-甲基-2-吡咯烷酮（NMP）和5-甲基-2-吡咯烷酮（MPy）作为溶剂和配体甲基丙烯酸甲酯（MMA）的铁（II）催化的原子转移自由基聚合（ATRP），以2-溴-2-苯基乙酸乙酯（EBPA）为引发剂。大多数聚合反应的特性得到了很好的控制，极性溶剂的结构极大地影响了催化活性。另外，在有限量的极性溶剂存在下，系统的活性特征仍然存在。某些极性溶剂（MFo，TMU和2-Py）也用于由MMA的电子转移（AGET）ATRP生成的铁（III）催化的活化剂，其结果与ATRP的结果一样好。

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