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The Colloidal Suprastructure of Smart Microgels at Oil–Water Interfaces
Author(s) -
Brugger Bastian,
Rütten Stephan,
Phan KimHo,
Möller Martin,
Richtering Walter
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200900239
Subject(s) - emulsion , colloid , chemical engineering , pickering emulsion , particle (ecology) , materials science , colloidal particle , nanotechnology , geology , oceanography , engineering
Oil on troubled waters : Stimuli‐sensitive emulsions have been used to prepare temperature‐ and pH‐responsive microgels. The emulsion stability at oil–water interfaces is not governed by the particle packing density, and structural changes induced by the interface lead to connections between the individual microgels (see picture; scale bar 1 μm), which behave very differently compared to solid‐particle‐stabilized emulsions.