Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Extraction: Effects of pH

Extraction: Effects of pH

Consider a neutral form of an amine, B, with a partition coefficient, K, in a liquid mixture containing organic and aqueous phases. The pH of the aqueous phase affects the charge on acidic and basic solutes, and the charged form is usually more soluble in the aqueous phase. Suppose the conjugate acid form of the amine is soluble only in the aqueous phase while the base form is soluble in both phases. Then the distribution coefficient, D, can be given as the ratio of amine concentration in the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Topology-Regulated Coarsening and Interfacial Morphologies in Amphiphilic Polymer-Fluid Blends.

Langmuir : the ACS journal of surfaces and colloids·2026

Same author

Topology and rigidity controlled coarsening in miktoarm star polymer melts.

The Journal of chemical physics·2026

Same author

Structural and Dynamical Insights into Self-Assembly Kinetics in Miktoarm Star Polymer Solutions: Role of Arm Size and Topology.

Langmuir : the ACS journal of surfaces and colloids·2025

Same author

Stabilizing Pickering Emulsions with Polymer Brush-Modified Tricompartmental Anisotropic Particles: A Simulation and Experimental Study.

Langmuir : the ACS journal of surfaces and colloids·2025

Same author

Coarsening in bent-core liquid crystals: a molecular dynamics study.

Soft matter·2025

Same author

Self-assembly kinetics of miktoarm star polymers in diverse solvent environments: insights from dissipative particle dynamics simulations.

Soft matter·2025

Search research articles

Related Experiment Video

Updated: Jul 10, 2025

Cell Co-culture Patterning Using Aqueous Two-phase Systems

Cell Co-culture Patterning Using Aqueous Two-phase Systems

Published on: March 26, 2013

Effect of amphiphilic polymers on phase separating binary mixtures: A DPD simulation study.

Avinash Chauhan¹, Dorothy Gogoi², Sanjay Puri²

¹Department of Physics, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India.

The Journal of Chemical Physics

|November 22, 2023

Summary

Amphiphilic polymers significantly alter binary fluid phase separation, influencing morphology and dynamics. Ring block copolymers show notable deviations from scaling laws, impacting growth regimes.

More Related Videos

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

Related Experiment Videos

Last Updated: Jul 10, 2025

Cell Co-culture Patterning Using Aqueous Two-phase Systems

Cell Co-culture Patterning Using Aqueous Two-phase Systems

Published on: March 26, 2013

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization

Published on: July 9, 2015

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Anionic Polymerization of an Amphiphilic Copolymer for Preparation of Block Copolymer Micelles Stabilized by π-π Stacking Interactions

Published on: October 10, 2016

Area of Science:

Materials Science
Polymer Science
Soft Matter Physics

Background:

Phase separation in binary mixtures is crucial for material properties.
Understanding the role of additives like amphiphilic polymers is key to controlling these processes.
Previous studies have explored various factors influencing phase separation, but a comprehensive analysis of polymer topology effects is lacking.

Purpose of the Study:

To investigate the impact of different amphiphilic polymer (AP) topologies on the phase separation dynamics of binary (AB) simple fluid (SF) mixtures.
To analyze the evolution of morphologies, dynamic scaling functions, and characteristic length scales.
To elucidate the underlying mechanisms governing these changes, particularly the role of AP structure.

Main Methods:

Dissipative particle dynamics (DPD) simulations in three dimensions (d=3).
Systematic variation of AP topologies: block copolymers, ring block copolymers (RCP), and miktoarm star polymers.
Analysis of morphology evolution, dynamic scaling laws (R(t) ~ t^ϕ), and characteristic length scales.

Main Results:

Amphiphilic polymers significantly alter the morphology evolution of simple fluid mixtures.
Ring block copolymers exhibit prominent deviations from dynamical scaling.
High AP concentrations lead to diffusive growth followed by length scale saturation, with variations based on AP constraints.
Lower AP ratios show inertial hydrodynamic growth without clear viscous hydrodynamic regimes.

Conclusions:

The study establishes the existence of hydrodynamic growth regimes in phase separation kinetics of binary fluids with low surfactant influence.
Amphiphilic polymer topology is a critical factor controlling phase separation dynamics and resulting morphologies.
The findings help resolve ambiguities in understanding phase separation in three-dimensional systems.