Abstract
In this report, we show a novel and simple preparation method for obtaining block-copolymer nanoparticles. Regular-sized polymer nanoparticles are formed after evaporation of a good solvent from a polymer solution containing a non-volatile poor solvent and the volatile good solvent. Nanoparticles of poly(styrene-b-sodium acrylate), poly(styrene-b-4-vinylpyridine), and poly(styrene-b-isoprene) were prepared by using this method. We also discuss the difference of internal structures between amphiphilic and hydrophobic block-copolymer nanoparticles. From the results of scanning transmission electron microscope (STEM) imaging, the particles of amphiphilic block-copolymers have hollow structures were observed. On the other hand, the particles of a hydrophobic block-copolymer form lamellar micro-phase separation structures.
| Original language | English |
|---|---|
| Pages (from-to) | 856-858 |
| Number of pages | 3 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 7 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2007 Mar 1 |
Keywords
- Block-copolymer
- Nanoparticles
- Phase separation structures
- Self-assembly
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Materials Science (miscellaneous)
- Engineering (miscellaneous)