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- Title
Visible-Light-Induced Controlled Polymerization of Hydrophilic Monomers with Ir(ppy)<sub>3</sub> as a Photoredox Catalyst in Anisole.
- Authors
Ma, Wenchao; Chen, Haochuan; Ma, Yuhong; Zhao, Changwen; Yang, Wantai
- Abstract
With fac-Ir(ppy)3 as photoredox catalyst and ethyl 2-bromoisobutyrate (EBiB) as initiator, the homopolymerization of methyl methacrylate (MMA) in different solvents, such as N, N-dimethylformamide (DMF), acetonitrile, and anisole are run under irradiation of an LED lamp. The results show that anisole is a better solvent for the polymerization with regard to the polydispersity index (PDI). A well-controlled polymerization of poly(ethylene glycol) methyl ether methacrylate (PEGMA) is demonstrated and the clean block copolymer of PMMA- b-PPEGMA is prepared with PDI less than 1.3; however, the 2-(dimethylamino) ethyl methacrylate (DMAEMA) polymerization is poorly controlled. With the PMMA as macromolecular initiator, the block copolymer PMMA- b-PDMAEMA can be prepared with PDI around 2.0.
- Subjects
HOMOPOLYMERIZATIONS; POLYMERIZATION research; CATALYSTS; ANISOLE; MONOMERS; ETHYLENE glycol; METHYL ether; METHACRYLATES
- Publication
Macromolecular Chemistry & Physics, 2014, Vol 215, Issue 10, p1012
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201400024