How ill-defined constituents produce well-defined nanoparticles: effect of polymer dispersity on the uniformity of copolymeric micelles
| Autor: | Matthias Barz, Shuanhu Qi, Sriteja Mantha, Friederike Schmid |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Materials science Physics and Astronomy (miscellaneous) Dispersity Self assemble Nanoparticle FOS: Physical sciences Nanotechnology 02 engineering and technology Polymer Condensed Matter - Soft Condensed Matter 021001 nanoscience & nanotechnology Polymeric nanoparticles 01 natural sciences Micelle chemistry 0103 physical sciences Copolymer Soft Condensed Matter (cond-mat.soft) General Materials Science Well-defined 010306 general physics 0210 nano-technology |
| Zdroj: | Physical Review Materials |
| Popis: | We investigate the effect of polymer length dispersity on the properties of self-assembled micelles in solution by self-consistent field calculations. Polydispersity stabilizes micelles by raising the free energy barriers of micelle formation and dissolution. Most importantly, it significantly reduces the size fluctuations of micelles: Block copolymers of moderate polydispersity form more uniform particles than their monodisperse counterparts. We attribute this to the fact that the packing of the solvophobic monomers in the core can be optimized if the constituent polymers have different length. 4 main figures and 4 supplementary figures. Manuscript accepted for publication in Physical Review Materials |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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