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Temperature-responsive interdrop association of condensed attractive nanoemulsions
- Source :
- Journal of Industrial and Engineering Chemistry. 86:158-166
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- This study introduces a temperature-responsive attractive nanoemulsion (ANE) system, which is characterized by the polymer chain conformation-driven dipolar interaction across different oil droplets in an aqueous medium. To achieve this, highly stable ANEs were produced by co-assembly of amphiphilic triblock copolymers (ATCs), poly(ethylene oxide)-b-poly(e-caprolactone)-b-poly(ethylene oxide) (PEO-b-PCL-b-PEO), with lecithin at the oil-water interface. The dipolar attraction of the methoxy terminated-PEO (mPEO) of ATCs on one drop surface with the lecithin head located on the other drop surface led to the drop-to-drop association. We showed that the efficiency of this interdrop association was dominantly influenced by the chain conformation of mPEO blocks. From dense suspension rheology studies, it was demonstrated that the ANEs formed a gel-like phase below the lower critical solution temperature (LCST) of the mPEO, but transformed to a liquid-like phase above the LCST, which occurred reversibly, thus enabling the development of temperature-responsive emulsion fluids.
- Subjects :
- chemistry.chemical_classification
food.ingredient
Ethylene oxide
General Chemical Engineering
Drop (liquid)
technology, industry, and agriculture
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Lecithin
Lower critical solution temperature
0104 chemical sciences
chemistry.chemical_compound
food
chemistry
Chemical engineering
Amphiphile
Emulsion
Copolymer
0210 nano-technology
Subjects
Details
- ISSN :
- 1226086X
- Volume :
- 86
- Database :
- OpenAIRE
- Journal :
- Journal of Industrial and Engineering Chemistry
- Accession number :
- edsair.doi...........a50c7c2266438b896fa772663f4d9ac4