期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 39, 期 13, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201800250
关键词
epoxy monomers; MWCNTs; visible light cationic photopolymerization
资金
- Marie Skodowska-Curie Research and Innovation Staff Exchange (RISE) Fellowship (Mat4Treat) within the H2020-MSCARISE-2014 European Community Call [645551]
- European Community Call
The visible light induced cationic polymerization of epoxides can be achieved by means of multiwalled carbon nanotubes (MWCNTs), which act as visible light photoinitiators via a radical-induced cationic photopolymerization process. When MWCNTs are irradiated with longer wavelengths (above 400 nm), they generate carbon radicals, by means of hydrogen abstraction from the epoxy monomer; these radicals are oxidized in the presence of iodonium salt to a carbocation that is sufficiently reactive to start the cationic ring-opening polymerization of an epoxy monomer. These mechanisms have been supported by electron paramagnetic resonance analysis.
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