Transactions of Nonferrous Metals Society of China
JOURNAL OF RAILWAY SCIENCE AND ENGINEERING
|Vol. 19 Special 3 December 2009|
poly(glycino amino acid) phosphazenes
（Key Laboratory of Advanced Functional Materials, College of Material Science and Engineering,
Beijing University of Technology, Beijing 100124, China）
Abstract:Poly(organophosphazenes) have potential applications in making water-soluble and biocompatible quantum dots (QDs) due to their wide variety of properties. The CdSe QDs of green emission and the core-shell CdSe/ZnS QDs of red emission were prepared. Subsequently the trioctylphosphine oxide-stabilized CdSe/ZnS QDs were transferred from chloroform into water through a ligand exchange process with poly(glycino amino acid)phosphazenes, which can be obtained from the saponification of poly (glycino amino ester)phosphazenes at room temperature. The resulting QDs-polymer nanocomposite particles can form colloidally stable suspensions in water and exhibit good photostability.
Key words: polyphosphazenes; CdSe/ZnS quantum dots; water-solublity; nanocomposite particles