A Highly Active Iron-Based Catalyst System for the AGET ATRP of Styrene

作者：Zhang Lifen; Cheng Zhenping; Lue Yueting; Zhu Xiulin^*

来源：Macromolecular Rapid Communications, 2009, 30(7): 543-547.

DOI：10.1002/marc.200800695

• atom transfer radical polymerization (ATRP)
• AGET ATRP
• iron catalyst
• living/controlled radical polymerization
• polystyrene
• tris(3,6-dioxaheptyl) amine (TDA-1) ligand

The atom transfer radical polymerization of styrene using activators generated by electron transfer (AGET ATRP) has been carried out in bulk in a limited amount of air at 110 degrees C, using 1,3,5-(2'-bromo-2'-methylpropionato)benzene (BMPB) as an initiator and FeCl(3) center dot 6H(2)O/tris(3,6-dioxaheptyl) amine (TDA-1)/ascorbic acid (VC) as a novel Fe(III)-mediated catalyst system. The results of the polymerizations demonstrate the features of `living'/controlled free-radical polymerization, such as the number-average molecular weights being close to their corresponding theoretical values and increasing linearly with monomer conversion, and narrow molecular weight distributions ((M) over bar (w)/(M) over bar (n) = 1.18-1.26). The end functionality of the obtained polymers was confirmed by (1)H and (13)C NMR spectra as well as a chain-extension reaction.

• 出版日期2009-4-1
• 单位苏州大学