期刊
JOURNAL OF FLUORINE CHEMISTRY
卷 132, 期 9, 页码 562-572出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2011.05.027
关键词
Nitrogen-based ligand; ATRP; 2,2,2-Trifluoroethyl methacrylate; Heterogeneous
资金
- Chinese Academy of Sciences
- NSF of China
We report the preparation of low-fluorinated homopolymer via heterogeneous atom transfer radical polymerization (ATRP) of 2,2,2-trifluoroethyl methacrylate (TFEMA) using 2,2'-bipyridine (bpy), N,N,W,N',N ''-pentamethyldiethylenetriamine (PMDETA), and tris(2-(dimethylamino)ethyl)amine (Me6TREN) as representatives for di-, tri-, and tetradentate amine ligands, respectively. The ATRP was better controlled, yielding polymers with controlled molecular weights and low polydispersities (M-w/M-n ca. 1.11) when bpy was used as a ligand than when PMDETA was used. This was further supported by the results of our kinetic and chain extension studies. However, the ATRP of TFEMA had lower monomer conversions and gel formation when Me6TREN was used as the ligand. Further reported are the thermal-properties, as well as the surface properties of the films from the resulting polymers with different molecular weights. (C) 2011 Elsevier B.V. All rights reserved.
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