Abstract
Core-corona structures of poly(ethyleneoxide)/polybutadiene (PEO/PB) block copolymer micelles are directly resolved for the first time by examining rapidly vitrified samples by transmission electron microscopy at liquid nitrogen temperature (Cryo-TEM). Spherical micelles form at higher PEO/PB block volume ratio; cylindrical form at lower block volume ratio. Images of both shapes of micelles show a dense core and a diffuse corona. The core and corona sizes agree well with theoretical prediction from the "star" model of polymer micelles.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 10333-10334 |
| Number of pages | 2 |
| Journal | Journal of Physical Chemistry B |
| Volume | 103 |
| Issue number | 47 |
| State | Published - Nov 25 1999 |