| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 613556 | Journal of Colloid and Interface Science | 2006 | 8 Pages |
A new O/W (oil-in-water) emulsification system was developed using the amphiphilic polymer HHM-HEC (hydrophobically–hydrophilically modified hydroxyethylcellulose) and a lipophilic surfactant. HHM-HEC was used as a thickener and polymeric surfactant, and the addition of small quantities of various types of nonionic lipophilic surfactant (hydrophilic–lipophilic balance <5) decreased the droplet size of several types of oil due to a lowering of the tension at the water/oil interface. The oil droplets were held by the strong network structure of the aqueous HHM-HEC solution, preserving the O/W phase without inversion. These stable O/W emulsions were prepared without the addition of hydrophilic surfactants and thus show improved water repellency.
Graphical abstractThe combination of amphiphilic polymer HHM-HEC and lipophilic surfactant made a new unique emulsification system. The network structure of HHM-HEC held oil particles stably and lipophilic surfactant lowered the interfacial tension and made oil particles small.Figure optionsDownload full-size imageDownload as PowerPoint slide
