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Related Experiment Video

Updated: Feb 15, 2026

Reconstitution of Basic Mitotic Spindles in Spherical Emulsion Droplets

Reconstitution of Basic Mitotic Spindles in Spherical Emulsion Droplets

Published on: August 13, 2016

Size-Dependent Phase Separation in Emulsion Droplets.

Jia Man¹, Steven Chien², Shuaishuai Liang³

¹State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, P. R. China.

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry

|February 6, 2018

Summary

This summary is machine-generated.

Phase separation in emulsion droplets depends on droplet size, influencing ethanol evaporation. This size-dependent separation, described by T≈D², allows controlled droplet structure design via UV curing.

Keywords:

UV curing emulsions microcapsules microfluidics phase separation

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Synthesis of Phase-shift Nanoemulsions with Narrow Size Distributions for Acoustic Droplet Vaporization and Bubble-enhanced Ultrasound-mediated Ablation

Synthesis of Phase-shift Nanoemulsions with Narrow Size Distributions for Acoustic Droplet Vaporization and Bubble-enhanced Ultrasound-mediated Ablation

Published on: September 13, 2012

Area of Science:

Materials Science
Chemical Engineering
Physical Chemistry

Background:

Phase separation is crucial for creating complex material structures.
Controlling phase separation in emulsions is key for tailored particle design.
Droplet size effects on emulsion stability and structure formation are not fully understood.

Purpose of the Study:

To investigate the influence of droplet size on phase separation in poly(ethylene glycol) diacrylate (PEGDA) and glycerol emulsions.
To elucidate the mechanism behind size-dependent phase separation.
To establish a quantitative relationship between droplet size and separation time for controlled structure formation.

Main Methods:

Emulsion preparation with PEGDA, glycerol, and ethanol.
Microscopy to observe phase separation dynamics.
Analysis of ethanol evaporation rates as a function of droplet size.
Derivation and experimental validation of a mathematical model (T≈D²).

Main Results:

Phase separation forms a glycerol-in-PEGDA structure within emulsion droplets.
Droplet size significantly impacts phase separation time by altering ethanol evaporation.
A quantitative relationship T≈D² was established and experimentally verified.
UV curing at different separation stages enables control over droplet structures.

Conclusions:

Droplet size is a critical parameter controlling phase separation kinetics in these emulsions.
The derived T≈D² relationship provides a predictive tool for controlling separation time.
Precise control over emulsion droplet size and UV curing is essential for fabricating monodisperse particles with uniform structures.