Synthesis of catalytically active polymers by means of ROMP.

Date

1999-08-22

Author

Bolm, C
Tanyeli, Cihangir
Dinter, CL
Seger, A
Grenz, A

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

50
views

0
downloads

Subject Keywords

chemistry

URI

https://hdl.handle.net/11511/54672

Journal

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Synthesis of SBA-15 and incorporation of cobalt oxide nanoparticles Şen, Ebubekir; Yılmaz, Ayşen; Department of Chemistry (2006) Mesoporous materials attracted great interest due to their huge surface area and adjustable pore sizes. One of the important mesoporous materials is SBA-15 and has larger pore size, hydrothermal stability and thicker walls than other mesoporous materials. In this study, SBA-15 is synthesized by using sol-gel technique and cobalt oxide nanoparticles are incorporated in mesochannels by direct method. SBA-15 was produced from the self-assembly of non-ionic triblock co-polymer (Pluronic 123) and tetra ethyl ort...
Synthesis and characterization of Co-Pb/SBA-15 mesoporous catalysts Akça, Burcu; Üner, Deniz; Department of Chemical Engineering (2006) Co and Pb are soft oxides, making them useful in partial oxidation catalysis. But it is difficult to prepare high surface area, nanometer size particles due to the low melting point of Pb. In the present study, SBA-15 samples are incorporated with Co and/or Pb at different weight loadings to provide a controlled geometry in nanometer scale via using direct synthesis method. The characterization of the synthesized samples was done by XRD, N2 adsorption isotherms, TEM images and XPS analysis. The increase in ...
Synthesis of spiro-containing 1,4-oxazepines from N-propargylic beta-enaminones Karadeniz, Eda; Kelgökmen, Yılmaz; Zora, Metin (2018-03-18) An efficient and general method for the synthesis of spiro‐1,4‐oxazepines and 3,3‐dimethyl‐1,4‐oxazepines is reported. When treated with ZnI2 and AgSbF6 in refluxing DCE, cyclohexane‐embedded N‐propargylic β‐enaminones underwent 7‐exo‐dig cyclization to afford spiro‐1,4‐oxazepines, specifically 12‐methylene‐11‐oxa‐7‐azaspiro[5.6]dodeca‐7,9‐dienes, in good to high yields. Accordingly, N‐(1,1‐dimethyl)propargylic β‐enaminones produced 3,3‐dimethyl‐1,4‐oxazepines. Cyclization was found to be general for a dive...
Preparation and characterization of carbon supported platinum nanocatalysts with different surfactants for C1 to C3 alcohol oxidations Ertan, Salih; Gökağaç Arslan, Gülsün; Department of Chemistry (2011) In this thesis, carbon supported platinum nanoparticles have been prepared by using PtCl4 as a starting material and 1-octanethiol, 1-decanethiol, 1-dodecanethiol and 1-hexadecanethiol as surfactants for methanol, ethanol and 2-propanol oxidation reactions. The structure, particle sizes and surface morphologies of the platinum were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM) and transmission electron microscopy (TEM). XRD and TEM results indicate that all prepared catalysts have ...
Preparation of chitosan-polyvinylpyrrolidone microspheres and films for controlled release and targeting of 5-fluorouracil Özerkan, Taylan; Hasırcı, Nesrin; Department of Polymer Science and Technology (2007) Controlled drug delivery systems deliver drugs at predetermined rates for extended periods. Although there are various types such as capsules, tablets etc, micro and nano spheres are the most commonly used systems. In this study, a set of chitosan-polyvinylpyrrolidone (CH-PVP) microspheres containing different amounts of polyvinylpyrrolidone as semi inter penetrating networks (semi-IPN) were prepared as controlled release systems. Emulsification method was applied for the preparation of microspheres and som...

Citation Formats

C. Bolm, C. Tanyeli, C. Dinter, A. Seger, and A. Grenz, “Synthesis of catalytically active polymers by means of ROMP.,” ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, pp. 0–0, 1999, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54672.