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Ligand-free iron-based electrochemically mediated atom transfer radical polymerization of methyl methacrylate†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-08-01 00:00:00 , DOI: 10.1039/c8py00933c Jirong Wang 1, 2, 3, 4, 5 , Mengying Tian 5, 6, 7, 8 , Shaoqiao Li 1, 2, 3, 4, 5 , Rui Wang 1, 2, 3, 4, 5 , Feipeng Du 5, 6, 7, 8 , Zhigang Xue 1, 2, 3, 4, 5
Polymer Chemistry ( IF 4.1 ) Pub Date : 2018-08-01 00:00:00 , DOI: 10.1039/c8py00933c Jirong Wang 1, 2, 3, 4, 5 , Mengying Tian 5, 6, 7, 8 , Shaoqiao Li 1, 2, 3, 4, 5 , Rui Wang 1, 2, 3, 4, 5 , Feipeng Du 5, 6, 7, 8 , Zhigang Xue 1, 2, 3, 4, 5
Affiliation
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Iron-based simplified electrochemically mediated atom transfer radical polymerization (seATRP) was successfully developed by using a sacrificial counter electrode and discarding organic nitrogen or phosphorus ligands. The catalytic activity of FeCl3·6H2O could be modulated just by different kinds of polar solvents (NMP, DMI, DMF, MeCN, and PEG200). With all of these solvents, polymerization of methyl methacrylate was effective and well-controlled with the agreement of theoretical molecular weight with experimental values, linear first-order kinetics, and narrow molecular weight distributions. This system is particularly intriguing because (i) expensive and toxic ligands are not required, (ii) the whole polymerization process could be operated in air, (iii) the activity is high even when catalyst loading is reduced down to 70 ppm and with low solvent content, and (iv) the reaction can be conducted in biocompatible and less expensive PEG200. Also, the effects of the magnitude of the applied potential, the species of catalysts, the monomer/solvent ratio and the initiators were also studied in detail.
中文翻译：
甲基丙烯酸甲酯的无配体铁基电化学介导的原子转移自由基聚合†
通过使用牺牲对电极并丢弃有机氮或磷配体，成功开发了铁基简化的电化学介导的原子转移自由基聚合（seATRP）。仅通过不同种类的极性溶剂（NMP，DMI，DMF，MeCN和PEG 200）就可以调节FeCl 3 ·6H 2 O的催化活性。）。在所有这些溶剂的作用下，甲基丙烯酸甲酯的聚合反应都是有效的，并且控制得很好，其理论分子量与实验值，线性一级动力学和较窄的分子量分布相一致。该系统特别吸引人，因为（i）不需要昂贵且有毒的配体，（ii）整个聚合过程都可以在空气中进行，（iii）即使催化剂负载降低至70 ppm且活性低，活性仍很高溶剂含量，以及（iv）反应可以在生物相容且较便宜的PEG 200中进行。另外，还详细研究了施加电势的大小，催化剂的种类，单体/溶剂比和引发剂的影响。
更新日期：2018-08-01
中文翻译：
甲基丙烯酸甲酯的无配体铁基电化学介导的原子转移自由基聚合†
通过使用牺牲对电极并丢弃有机氮或磷配体，成功开发了铁基简化的电化学介导的原子转移自由基聚合（seATRP）。仅通过不同种类的极性溶剂（NMP，DMI，DMF，MeCN和PEG 200）就可以调节FeCl 3 ·6H 2 O的催化活性。）。在所有这些溶剂的作用下，甲基丙烯酸甲酯的聚合反应都是有效的，并且控制得很好，其理论分子量与实验值，线性一级动力学和较窄的分子量分布相一致。该系统特别吸引人，因为（i）不需要昂贵且有毒的配体，（ii）整个聚合过程都可以在空气中进行，（iii）即使催化剂负载降低至70 ppm且活性低，活性仍很高溶剂含量，以及（iv）反应可以在生物相容且较便宜的PEG 200中进行。另外，还详细研究了施加电势的大小，催化剂的种类，单体/溶剂比和引发剂的影响。
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