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

✍ Scribed by Lifen Zhang; Zhenping Cheng; Yueting Lü; Xiulin Zhu

• Book ID: 102491761
• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 189 KB
• Volume: 30
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200800695

✦ Synopsis

Abstract

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 °C, using 1,3,5‐(2′‐bromo‐2′‐methylpropionato)benzene (BMPB) as an initiator and FeCl~3~ · 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 ($\overline M _{\rm w} /\overline M _{\rm n}$ = 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.

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