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Direct ATRP of Methacrylic Acid with Iron-Porphyrin Based Catalysts
ACS Macro Letters ( IF 5.1 ) Pub Date : 2017-12-14 00:00:00 , DOI: 10.1021/acsmacrolett.7b00909 Liye Fu 1 , Antonina Simakova 1 , Marco Fantin 1 , Yi Wang 1 , Krzysztof Matyjaszewski 1
ACS Macro Letters ( IF 5.1 ) Pub Date : 2017-12-14 00:00:00 , DOI: 10.1021/acsmacrolett.7b00909 Liye Fu 1 , Antonina Simakova 1 , Marco Fantin 1 , Yi Wang 1 , Krzysztof Matyjaszewski 1
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An iron porphyrin catalyst, derived from the active center of proteins such as horseradish peroxidase and hemoglobin, was successfully used for the atom transfer radical polymerizations (ATRP) of methacrylic acid. ATRP of methacrylic acid and other acidic monomers is challenging due to Cu complexation by carboxylates, protonation of the ligand, and displacement of the halogen chain end. A robust mesohemin-based catalyst provided controlled ATRP of methacrylic acid, yielding poly(methacrylic acid) with Mn ≥ 20000 and dispersity Đ < 1.5. Retention of halogen chain end was confirmed by successful chain extension of a poly(methacrylic acid)–Br macroinitiator.
中文翻译：
铁卟啉基催化剂直接催化甲基丙烯酸 ATRP
源自辣根过氧化物酶和血红蛋白等蛋白质活性中心的铁卟啉催化剂已成功用于甲基丙烯酸的原子转移自由基聚合（ATRP）。由于羧酸盐与铜络合、配体的质子化以及卤素链末端的置换，甲基丙烯酸和其他酸性单体的 ATRP 具有挑战性。一种基于中间血红素的稳健催化剂提供了甲基丙烯酸的受控 ATRP，产生M n ≥ 20000 且分散度Đ < 1.5 的聚（甲基丙烯酸）。通过聚（甲基丙烯酸）-Br 大分子引发剂的成功扩链证实了卤素链端的保留。
更新日期：2017-12-14
中文翻译：
铁卟啉基催化剂直接催化甲基丙烯酸 ATRP
源自辣根过氧化物酶和血红蛋白等蛋白质活性中心的铁卟啉催化剂已成功用于甲基丙烯酸的原子转移自由基聚合（ATRP）。由于羧酸盐与铜络合、配体的质子化以及卤素链末端的置换，甲基丙烯酸和其他酸性单体的 ATRP 具有挑战性。一种基于中间血红素的稳健催化剂提供了甲基丙烯酸的受控 ATRP，产生M n ≥ 20000 且分散度Đ < 1.5 的聚（甲基丙烯酸）。通过聚（甲基丙烯酸）-Br 大分子引发剂的成功扩链证实了卤素链端的保留。
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