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Harnessing the interaction between surfactant and hydrophilic catalyst to control eATRP in miniemulsion.

ABSTRACT: 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.

SUBMITTER: Fantin M

PROVIDER: S-EPMC6029256 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature

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Harnessing the interaction between surfactant and hydrophilic catalyst to control <i>e</i>ATRP in miniemulsion.

Fantin Marco M Chmielarz Paweł P Wang Yi Y Lorandi Francesca F Isse Abdirisak A AA Gennaro Armando A Matyjaszewski Krzysztof K

Macromolecules 20170425 9

In contrast with previous accounts, it is reported that a single, strongly hydrophilic Cu complex can control an electrochemically mediated atom transfer radical polymerization (<i>e</i>ATRP) 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 ...[more]

PMID: 29977099

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