Citation: CHEN Jinhua, JIANG Hongji. Kinetics of Single-Electron Transfer Living Radical Polymerization of Methyl Acrylate in the Presence of Anhydrous Ferric Chloride[J]. Chinese Journal of Applied Chemistry, ;2017, 34(1): 40-45. doi: 10.11944/j.issn.1000-0518.2017.01.160095 shu

Kinetics of Single-Electron Transfer Living Radical Polymerization of Methyl Acrylate in the Presence of Anhydrous Ferric Chloride

CHEN Jinhua ,
JIANG Hongji ^*,,

Key Laboratory for Organic Electronics and Information Displays, Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210023, China

Corresponding author: JIANG Hongji, iamhjjiang@njupt.edu.cn
Received Date: 7 March 2016
Revised Date: 25 April 2016
Accepted Date: 7 June 2016

Fund Project: the National Natural Science Foundation of China No. 21574068Priority Academic Program Development of Jiangsu Higher Education Institutions No. YX03001Supported by the Major Research Program from the State Ministry of Science and Technology No. 2012CB933301Natural Science Foundation of the Jiangsu Higher Education Institutions of China No. 15KJB150022

Figures(5)

Single-electron transfer living radical polymerization(SET-LRP) as an effective method is adopted to synthesize polymers with defined relative molecular mass, composition and specified molecular structure, which is powerful to adjust the molecular mass distribution of the obtained polymers in a wide range. To study the effects of the externally added anhydrous ferric chloride on the general SET-LRP polymerization kinetics of methyl acrylate, we carry out the research by using methyl 2-bromopropionate as the initiator and Cu(0)/tris(2-(dimethylamino)ethy)amine(Me₆-TREN) as the composite catalytic system in dimethyl sulfoxide with different ratios of anhydrous ferric chloride. The experimental results indicate that the externally added anhydrous ferric chloride has an important influence on the polymerization kinetics of methyl acrylate. With increasing the concentration of iron ions in the solvent, the polymerization rates decrease and the induction period appears to be prolonged indicating that iron ions are involved in SET-LRP polymerization kinetics. This may be due to the decreased concentration of Cu(Ⅰ) relative to that of the reaction without the addition of any anhydrous ferric chloride. The current work will stimulate us to further clarify the origin of induction period in the copper(0) catalyzed SET-LRP of typical monomers.
- anhydrous ferric chloride,
- single-electron transfer living radical polymerization,
- polymerization kinetics,
- poly(methyl acrylate)
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