Harnessing the interaction between surfactant and hydrophilic catalyst to control eATRP in miniemulsion.
Harnessing the interaction between surfactant and hydrophilic catalyst to control eATRP in miniemulsion.
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DOI:
10.1021/acs.macromol.7b00530
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发表时间:
2017-05-09
期刊:
影响因子:
5.5
通讯作者:
Matyjaszewski K
中科院分区:
文献类型:
--
作者:
Fantin M;Chmielarz P;Wang Y;Lorandi F;Isse AA;Gennaro A;Matyjaszewski K
In contrast with previous accounts, it is reported that a single, strongly hydrophilic Cu complex can control an electrochemically mediated atom transfer radical polymerization (eATRP) in oil-in-water miniemulsion in the presence of anionic surfactants, such as sodium dodecyl sulfate (SDS). The anionic surfactant interacted strongly with cationic copper complexes, enabling controlled polymerization by a combination of “interfacial” and “ion-pair” catalysis, whereby ion pairs transport the catalyst to the monomer droplets. The ion-pair system was assembled in situ by mixing commercially available reagents (NaBr, SDS, and traditional hydrophilic copper complexes). Polymer purification was very facile because after reaction >99% of the hydrophilic copper complexes spontaneously left the hydrophobic polymer particles.
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