What Does Oil/Water Curvature Indicate about Emulsions and Microemulsions?

[superwolf]

When it comes to emulsions and microemulsions; what does oil/water curvature mean?

What does it mean that microemulsions have high oil/water curvatures, while emulsions have small oil/water curvatures?

 

[Mapes]

Curvature is inversely proportional to radius (for a sphere, curvature [/itex]\kappa=2/R$). Smaller spheres thus have larger curvature values.$