Versatile Hybrid Polymers as Matrices for Nanoparticle Preparation

Autor:	Sorin Ivanovici, Claudia Feldgitscher, Guido Kickelbick
Rok vydání:	2007
Předmět:	chemistry.chemical_classification Lanthanide Materials science Ethylene oxide Precipitation (chemistry) Thermal decomposition technology industry and agriculture Nanoparticle macromolecular substances Polymer Hydrolysis chemistry.chemical_compound chemistry Polymer chemistry Thermal stability
Zdroj:	MRS Proceedings. 1007
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-1007-s12-08
Popis:	Hybrid inorganic-organic polymers were prepared applying poly(ethylene oxide) (PEO) crosslinked polysiloxanes as a matrix for the precipitation of metal or metal oxide nanoparticles. Polysiloxanes as flexible and hydrophobic polymer backbones were crosslinked with end-group functionalized PEO by using Pt-catalyzed hydrosilation reactions. Systematic variation of the chain length of the different components resulted in tunable matrices with adjustable hydrophilic regions. The chemical nature of the polysiloxane backbone and the thermal stability of the crosslinked polymer system facilitated nanoparticle preparation through different mechanisms.The crosslinked hybrid polymers were infiltrated with solutions of lanthanide salts, cobalt carbonyl or HAuCl4 allowing the application of three different chemical methods (hydrolysis, thermal decomposition, reduction) for nanoparticle preparation. FT-IR, SEM and TEM analyses were used to characterize the insoluble hybrid systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::38d2eae037c3a832f23a036f83550b01 https://doi.org/10.1557/proc-1007-s12-08 Zobrazit plný text záznamu Full text from SpringerLink