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Free Content Surface Hydrophilicity of Spherical Micelle from Self-Assembly of Random Copolymer: A Dissipative Particle Dynamics Simulation

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Coarse-grained models with different ratios of numbers of hydrophilic particles to hydrophobic particles were built for amphiphilic random copolymers. The surface hydrophilicity of spherical micelles formed from self-assembly of amphiphilic random copolymers in solution was investigated via dissipative particle dynamics (DPD) simulations. The simulations showed that solid spherical micelles are formed from self-assembly of amphiphilic random copolymers in selective solvents. The surface hydrophilicity of spherical micelles is related to the content of hydrophilic particles and selectivity of the solvent. The surface hydrophilicity of spherical micelles increases with increasing content of hydrophilic particles. In addition, the surface hydrophilicity of spherical micelles increases with the increase of the repulsion parameters between hydrophobic particles and solvent, which is in good agreement with the experimental results. These findings can provide theoretical guidance for molecular design and experimental studies on selfassembly of amphiphilic random copolymers in solution.
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Keywords: Amphiphilic random copolymer; Dissipative particle dynamics; Hydrophilicity; Self-assembly; Spherical micelle

Document Type: Research Article

Publication date: June 15, 2013

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  • Acta Physico-Chimica Sinica, founded in 1985, is sponsored by the Chinese Chemical Society and organized by the College of Chemistry and Molecular Engineering, PekingUniversity. Since 1997, Acta Physico-Chimica Sinica has been indexed in SCI of ISI (US). Acta Physico-Chimica Sinica is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, and material physical chemists. Manuscripts that are essentially reporting data, applications of data, or reviews of the literature are not suitable for publication in Acta Physico-Chimica Sinica.
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