Pickering emulsion of metal-free photoinduced electron transfer-ATRP stabilized by cellulose nanocrystals
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The development of metal-free photoinduced electron transfer-atom transfer radical polymerization (PET-ATRP) in Pickering emulsion by cellulose nanocrystals (CNCs) has successfully investigated. In the presence of ethyl 2-bromoisobutyrate (initiator) and triethylamine (additives), Eosin Y (photocatalyst) can effectively achieve the controllable polymerization of methyl methacrylate utilize CNCs as stabilizer. The polymerization in Pickering emulsion has relatively higher stability. The polymerizations of MMA showed typical “living”/controlled characteristics with controlled molecular weights (150,100–219,100 g/mol) and low Mw/Mn (1.10–1.25). CNCs can not only be recycled, but also can be applicable as one of the most robust “green” emulsifier for PET-ATRP in Pickering emulsion.
KeywordsCellulose nanocrystals Atom transfer radical polymerization Pickering emulsion Photoinduced electron transfer ATRP
The research was financially supported by the National Natural Science Foundation of China (Nos. 51773086 and 51573075), the Key Program for Basic Research of Natural Science Foundation of Shandong Province (No. ZR2018ZC0946) and the Project of Shandong Province Higher Educational Science (Nos. J16LC20 and J18KA080).
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Conflicts of interest
There are no conflicts to declare.
- Chmielarz P et al (2017) Electrochemically mediated atom transfer radical polymerization (eATRP). Prog Polym Sci 69:47–78. https://doi.org/10.1016/j.progpolymsci.2017.02.005 CrossRefGoogle Scholar