Abstract
Amphiphilic copolymers based on polystyrene (PS) and poly(ethylene oxide) (PEO) were assembled in branched architectures with a view of obtaining samples exhibiting little fluctuation in size and composition. "Living"/controlled polymerizations - anionic for ethylene oxide and atom transfer radical one for styrene - were associated with highly selective branching reactions towards this end. Another means to generate original branched amphiphilic copolymers was to resort to the ring-opening metathesis (co)polymerization of macromonomers. No less than twelve novel architectures based on PEO and PS - regular stars, stars, dendrimer-like stars, H-type copolymers, miktoarm stars, janus-type spheres, etc. - were engineered through these techniques.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 150-155 |
| Number of pages | 6 |
| Journal | Polymer News |
| Volume | 26 |
| Issue number | 5 |
| State | Published - May 2001 |
| Externally published | Yes |
Keywords
- Anionic polymerization
- Atom transfer radical polymerization
- Branched amphiphilic copolmers
- Poly(ethylene oxide)
- Polystyrene
- Ringopening metathesis polymerization
ASJC Scopus subject areas
- Chemical Engineering (miscellaneous)
- Polymers and Plastics