Issue 77, 2015

Facile iron(iii)-mediated ATRP of MMA with phosphorus-containing ligands in the absence of any additional initiators

Abstract

A series of phosphorus-containing ligands was employed to establish a novel polymerization system for the iron(III)-mediated polymerization of methyl methacrylate (MMA) just using FeCl3·6H2O or FeBr3 as the catalyst without any additional initiators and reducing agents. The polymerization results showed that this polymerization system involving MMA/FeX3 (X = Cl, Br)/phosphorus-containing ligand was a typical “living”/controlled radical polymerization process: first-order polymerization kinetics with respect to monomer concentration and a linear increase of the molecular weight of the resultant PMMAs with conversion while keeping a narrow molecular weight distribution. Chain end analysis of the obtained PMMA based on 1H NMR, 31P NMR were used to confirm the precise structure of the obtained polymers. The results showed that phosphorus-containing complexes acted as both ligand and thermal radical initiators in this process, which was consistent with a reverse atom transfer radical polymerization (reverse ATRP) mechanism.

Graphical abstract: Facile iron(iii)-mediated ATRP of MMA with phosphorus-containing ligands in the absence of any additional initiators

Supplementary files

Article information

Article type
Paper
Submitted
01 Jun 2015
Accepted
16 Jul 2015
First published
16 Jul 2015

RSC Adv., 2015,5, 62577-62584

Facile iron(III)-mediated ATRP of MMA with phosphorus-containing ligands in the absence of any additional initiators

L. Bai, W. Wang, H. Chen, L. Zhang, Z. Cheng and X. Zhu, RSC Adv., 2015, 5, 62577 DOI: 10.1039/C5RA10317G

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