Encapsulation of metallo-porphyrins into water-soluble amphipatic dendrigrafts

Autor: Michel Schappacher, Alain Deffieux
Rok vydání: 2004
Předmět:
Zdroj: Polymer. 45:4633-4639
ISSN: 0032-3861
DOI: 10.1016/j.polymer.2004.05.022
Popis: Newly prepared water-soluble amphipatic hyperbranched organic polymers are used as nanocontainer and as carriers for large metal-organic molecules such as metallo-porphyrins. The hydrosoluble dendrigrafts are constituted by a polystyrene hydrophobic core surrounded by a polyvinyl ether hydrophilic shell. These nanometer-sized amphipatic macromolecules with an average diameter of about 100 nm and narrow polydispersity are fully soluble in aqueous media. Their capacity to encapsulate and transport metallo-porphyrins in aqueous media is investigated. Complexation studies show that up to several thousands of guest molecules can be embedded into each amphipatic dendrigraft macromolecule.
Databáze: OpenAIRE