| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5184007 | Polymer | 2010 | 6 Pages |
Abstract
A novel route for a preparation of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer vesicles induced by supercritical carbon dioxide (scCO2) is demonstrated. When PS-b-PEO block copolymer solutions in tetrahydrofuran (THF) are treated with scCO2 at 70 °C for different times, PS-b-PEO copolymers first assemble into aggregated spheres; then aggregated spheres change into large compound micelles and finally evolve into vesicles. The possible formation mechanism of the vesicles is discussed.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Limei Xu, Xiaokai Zhang, Hui Yang, Xue Li, Chunsheng Li, Shuxiang Zhang,