American Chemical Society
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Self-Assembly Behavior of Hairy Colloidal Particles with Different Architectures: Mixed versus Janus

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journal contribution
posted on 2014-11-04, 00:00 authored by A. Kirillova, G. Stoychev, L. Ionov, A. Synytska
In this paper, we investigated the aggregation and assembly behavior of hairy core–shell particles with different architectures consisting of a hard silica core and soft polymer brush shells. We varied the nature of the polymers which form the shell: we used different hydrophilic positively (poly­(2-(dimethylamino)­ethyl methacrylate), PDMAEMA) and negatively (poly­(acrylic acid), PAA) charged polymers, uncharged hydrophilic (polyethylene glycol, PEG) polymers, and hydrophobic (poly­(lauryl methacrylate), PLMA; polystyrene, PS) polymers. We synthesized particles covered by polymer of one sort (homogeneously coated particles) as well as Janus particles (two polymers are grafted to the opposite sides of the core) and investigated/compared the aggregation behavior of different fully covered particles, their mixtures, and Janus particles.