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Related Concept Videos

Solubility03:00

Solubility

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Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
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Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
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Anionic Chain-Growth Polymerization: Mechanism01:04

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The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic anion, such as butyl lithium, initiates the polymerization process by attacking the π bond of the vinylic monomer. As a result, a carbanion, stabilized by the electron‐withdrawing group, is generated. The resulting carbanion acts as a Michael donor in the propagation step and attacks the second vinylic monomer, which acts as a Michael...
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The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
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Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils
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Single-chain polymer nanoparticles for oil solubilization.

Davide Arena1, J I Miranda2, Viviane Lutz-Bueno3

  • 1Centro de Física de Materiales (CFM-MPC), CSIC-UPV/EHU, P Manuel Lardizabal 5, Donostia E-20018, Spain; Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología, University of the Basque Country (UPV/EHU), Faculty of Chemistry, P Manuel Lardizabal 3, Donostia E-20018, Spain.

Journal of Colloid and Interface Science
|November 9, 2025
PubMed
Summary
This summary is machine-generated.

Amphiphilic single-chain nanoparticles (SCNPs) self-assemble into stable, isolated oil nanocarriers. These structures effectively solubilize oil, showing potential for advanced delivery systems.

Keywords:
Amphiphilic random copolymerOil nanocarrierSingle-chain nanoparticles

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • Amphiphilic single-chain nanoparticles (SCNPs) are emerging as versatile nanostructures.
  • Understanding their self-assembly and oil solubilization is crucial for applications.

Purpose of the Study:

  • To investigate the oil solubilization capabilities of amphiphilic SCNPs.
  • To elucidate the structure-property relationships governing SCNP behavior.

Main Methods:

  • Synthesis of random copolymers of oligo(ethyleneglycol) methacrylate (OEGMA) and anthracene methacrylate (AnMA).
  • Small-angle X-ray scattering (SAXS) and small-angle neutron scattering (SANS) with contrast variation.
  • Molecular dynamics (MD) simulations and diffusion nuclear magnetic resonance (NMR).

Main Results:

  • SCNPs self-assemble into flexible, cylindrical structures driven by anthracene association.
  • Higher AnMA content leads to shorter, thicker worm-like SCNPs.
  • OEGMA segments provide steric repulsion, preventing inter-chain aggregation and ensuring stability.
  • Toluene incorporation slightly thickens the SCNP cross-section without altering overall structure.
  • NMR confirmed successful toluene solubilization within the SCNPs.

Conclusions:

  • Amphiphilic SCNPs are stable, isolated nanostructures capable of oil solubilization.
  • Their molecular architecture dictates microstructure and stability, offering potential as oil nanocarriers.