Abstract
Block-copolymer nanoparticles with lamellar phase-separation structures have been prepared by a slow-precipitation process. Regular-sized poly(styrene-b-isoprene) nanoparticles are formed after evaporation of a good solvent from a polymer solution containing a non-volatile poor solvent and a volatile good solvent. Scanning transmission electron microscopy (STEM) reveals lamellae structures were formed in the nanoparticles. Energy dispersive X-ray photoelectron spectroscopy (EDX) reveals that these microstructures were formed by micro-phase separation of block-copolymers. Furthermore, the size of micro-phase separation structure can be controlled by changing the segment ratio between polystyrene and polyisoprene.
| Original language | English |
|---|---|
| Pages | 3922-3923 |
| Number of pages | 2 |
| Publication status | Published - 2005 Dec 1 |
| Event | 54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 2005 Sep 20 → 2005 Sep 22 |
Other
| Other | 54th SPSJ Symposium on Macromolecules |
|---|---|
| Country | Japan |
| City | Yamagata |
| Period | 05/9/20 → 05/9/22 |
Keywords
- Block-copolymer
- Hierarchic structures
- Micro phase separation
- Nanoparticles
- Self-organization
ASJC Scopus subject areas
- Engineering(all)
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Cite this
Yabu, H., Higuchi, T., & Shimomura, M. (2005). Preparation of polymer nanoparticles with hierarchic structures. 3922-3923. Paper presented at 54th SPSJ Symposium on Macromolecules, Yamagata, Japan.