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Particle Formation in the Emulsion‐Solvent Evaporation Process
Author(s) -
Staff Roland H.,
Schaeffel David,
Turshatov Andrey,
Donadio Davide,
Butt HansJürgen,
Landfester Katharina,
Koynov Kaloian,
Crespy Daniel
Publication year - 2013
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201300372
Subject(s) - coalescence (physics) , evaporation , dynamic light scattering , materials science , emulsion , light scattering , colloid , chemical physics , zeta potential , particle (ecology) , solvent , polymer , fluorescence , chemical engineering , particle size distribution , particle size , fluorescence correlation spectroscopy , scattering , nanotechnology , chemistry , nanoparticle , thermodynamics , optics , organic chemistry , physics , oceanography , astrobiology , geology , engineering , composite material
The mechanism of particle formation from submicrometer emulsion droplets by solvent evaporation is revisited. A combination of dynamic light scattering, fluorescence resonance energy transfer, zeta potential measurements, and fluorescence cross‐correlation spectroscopy is used to analyze the colloids during the evaporation process. It is shown that a combination of different methods yields reliable and quantitative data for describing the fate of the droplets during the process. The results indicate that coalescence plays a minor role during the process; the relatively large size distribution of the obtained polymer colloids can be explained by the droplet distribution after their formation.