Soft Particles at Liquid Interfaces: From Molecular Particle Architecture to Collective Phase Behavior
نویسندگان
چکیده
Soft particles such as microgels and core-shell can undergo significant anisotropic deformations when adsorbed to a liquid interface. This, in turn, leads complex phase behavior upon compression. Here we develop multiscale framework rationally link the molecular particle architecture resulting interfacial morphology and, ultimately, collective behavior, enabling us identify key single-particle properties underlying two-dimensional continuous, heterostructural, isostructural solid-solid transitions. Our approach resolves existing discrepancies between experiments simulations thus provides unifying describe transitions soft-particle systems. We establish proof-of-principle for our rational by synthesizing three different poly(N-isopropylacrylamide) architectures, each of which corresponds targeted behavior. In parallel, introduce versatile highly efficient coarse-grained simulation method that adequately captures qualitative features system; novel ingredient model is use auxiliary degrees freedom explicitly account swelling collapse function surface pressure. Notably, these combined efforts allow first experimental demonstration heterostructural transition chain single-component system, well accurate silico transition. Overall, bridge physicochemical characteristics at molecular- nanoscale self-assembly phenomenology macroscale, paving way towards materials with on-demand
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ژورنال
عنوان ژورنال: Langmuir
سال: 2021
ISSN: ['1520-5827', '0743-7463']
DOI: https://doi.org/10.1021/acs.langmuir.1c00541