[EN] TEMPLATE-DIRECTED SYNTHESIS OF POROUS MATERIALS USING DENDRIMER PRECURSORS [FR] SYNTHESE DIRIGEE PAR DES GABARITS POUR L'OBTENTION DE MATERIAUX POREUX A PARTIR DE PRECURSEURS DE DENDRIMERES
[EN] TEMPLATE-DIRECTED SYNTHESIS OF POROUS MATERIALS USING DENDRIMER PRECURSORS [FR] SYNTHESE DIRIGEE PAR DES GABARITS POUR L'OBTENTION DE MATERIAUX POREUX A PARTIR DE PRECURSEURS DE DENDRIMERES
Palladium complexes of phosphine functionalised carbosilane dendrimers as catalysts in a continuous flow membrane reactor†
作者:Debby de Groot、Janine C. de Wilde、Richard J. van Haaren、Joost N. H. Reek、Paul C. J. Kamer、Piet W. N. M. van Leeuwen、Eva B. Eggeling、Dieter Vogt、Huub Kooijman、Anthony L. Spek、Alexander W. van der Made
DOI:10.1039/a904455h
日期:——
Phosphine functionalised carbosilane dendrimers have been synthesised and their palladium complexes used as catalysts in the allylic alkylation reaction performed in a continuous flow membrane reactor.
Preparation and Characterization of Nonpolar Fluorinated Carbosilane Dendrimers by APcI Mass Spectrometry and Small-Angle X-ray Scattering
作者:Bamidele A. Omotowa、Keith D. Keefer、Robert L. Kirchmeier、Jean'ne M. Shreeve
DOI:10.1021/ja992794r
日期:1999.12.1
The following highly fluorinated nonpolar dendrimers were obtained in high yields from multiple hydrosilylation reactions between core hydride terminated carbosilane dendrimers and ally1-1,1-dihydrofluoroethyl ether or ally1-1,1-dihydroheptadecafluorononyl ether through divergent synthetic routes: Si[CH2CH2SiMe2(CH2CH2CH2OCH2CF3)](4) (7),SiCH2CH2SiMe[CH2CH2SiMe(CH2CH2CH2OCH2CF3)(2)](2)}(4) (8), Si[CH2CH2Si(CH2CH2CH2OCH2C8F17)(3)]4 (9), Si[CH2CH2SiMe2(CH2CH2CH2OCH2C8F17)](4) (10), and SiCH2CH2Si[CH2CH2Si(CH2CH2CH2OCH2C8F17)(3)](3)}(4) (11) These compounds were characterized by elemental and spectroscopic analyses. Valuable mass spectral data were obtained by using atmospheric pressure chemical ionization (APcI). The fluorinated dendrimer molecule and the nonfluorinated core scatter X-ray light differently and present unique slopes on the Guinier Plot of data from small-angle X-ray light scattering (SAXS) in hexafluorobenzene. Glass transition temperatures (T-g) and thermogravimetric analyses (TGA) of the dendrimers were determined.
Palladium Complexes of Phosphane-Functionalised Carbosilane Dendrimers as Catalysts in a Continuous-Flow Membrane Reactor
作者:Debby de Groot、Joost N. H. Reek、Paul C. J. Kamer、Piet W. N. M. van Leeuwen
Coupar, Pamela I.; Jaffres, Paul-Alain; Morris, Russell E., Journal of the Chemical Society, Dalton Transactions, 1999, # 13, p. 2183 - 2187
作者:Coupar, Pamela I.、Jaffres, Paul-Alain、Morris, Russell E.
DOI:——
日期:——
[EN] TEMPLATE-DIRECTED SYNTHESIS OF POROUS MATERIALS USING DENDRIMER PRECURSORS<br/>[FR] SYNTHESE DIRIGEE PAR DES GABARITS POUR L'OBTENTION DE MATERIAUX POREUX A PARTIR DE PRECURSEURS DE DENDRIMERES
申请人:UNIV TORONTO
公开号:WO2005049625A1
公开(公告)日:2005-06-02
The present invention provides a template-directed self-assembly strategy to integrate the class of materials called dendrimers with periodic mesoporous and macroporous silica materials to create two totally new classes of organic/inorganic nanocomposite materials, which we call periodic mesoporous dendrisilicas (PMeDs) and periodic macroporous dendrisilicas (PMaDs). The unusual combination of inorganic silica and organic dendrimer chemical structures with these scales of porosity and surfaces suggests a myriad of uses for PMeDs and PMaDs, such as the controlled release and uptake of chemicals, chiral separations and catalysis, electronic printing and microelectronic packaging, biomaterial platforms, chromatography stationary phase, and photonic crystal applications. These applications target the synergistic relationship between the dendrimer and the meso- or macroporous structure within a single hierarchical nanostructured organic/inorganic hybrid material.