Search of a stereospecific catalyst for stereoregular polymerization of propylene oxide in trimethylaluminum-water catalyst system.

Sarı, Adnan


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Takrouri, Fahed; Alyürük, Kemal; Department of Chemistry (1991)
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In this study, the ultimate aim was to utilize phenol oxidases of Scytalidium thermophilum in bioorganic syntheses. For this purpose, studies were conducted towards enhancing the production of phenol oxidases by Scytalidium thermophilum, developing a suitable method for laccase activity assays, analyzing the effects of organic solvents on phenol oxidase activity and analysis of the biotransformation of a number of organic substrates by phenol oxidases of Scytalidium thermophilum. In order to enhance the pro...
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The study comprises synthesis of 3,6 and 2,7 substituted carbazole derivatives. Substitution was done by furan groups. The main purpose to conduct this study is to synthesize new low band gap donor-acceptor type monomers and analyze the differences stem from the substitution site difference and alkyl chain effect attached to the nitrogen atom. For this aim, four monomers; 3,6-Di(2-furyl)-9H-carbazole (3,6-F-Cz-F), 3,6-Di(2-furyl)-9-ethyl-carbazole (3,6-F-N-et-F), 2,7-Di(2-furyl)-9-H-carbazole (2,7-F-Cz-F) ,...
Comparative life cycle cost analysis of centrifugal and positive displacement pumps for mine dewatering
Aktaş, Ali Burak; Demirel, Nuray; Department of Mining Engineering (2015)
In mining activities, there is water flow to mining environment which must be removed by mine dewatering method to provide suitable working conditions. One of the ways of mine dewatering is conducted via pumps there mainly two types of pumps are being used in mine dewatering operations, centrifugal and positive displacement pumps. Centrifugal pumps utilize the submersible as feeder to horizontal pumps in main stations for further pumping to ponds or collection dams at surface, while positive displacement pu...
Comparison and discussion of sunshine-based models and construction of a new model to estimate the global solar radiation.
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Citation Formats
A. Sarı, “Search of a stereospecific catalyst for stereoregular polymerization of propylene oxide in trimethylaluminum-water catalyst system.,” Ph.D. - Doctoral Program, Middle East Technical University, 1985.