Synthesis and characterization of alkaline earth and rare earth borophosphate compounds

Baykal, Abdülhadi


Flame retardancy effects of zinc borate and nanoclay in ABS, and boron compounds in PET
Özkaraca, Ayşe Çağıl; Kaynak, Cevdet; Department of Metallurgical and Materials Engineering (2011)
In this thesis there were two main purposes, the first one being to investigate effects of zinc borate (ZB) on the flammability behavior of ABS when used with and without a traditional brominated flame retardant (BFR) / antimony trioxide (AO) system. The second purpose was to investigate contribution of nanoclays (NC) to the flame retardancy performance of the same traditional BFR compound with various combinations of AO and ZB again in ABS matrix. For these purposes, materials were melt compounded by using...
Development and evaluation of performance of new ligands for removal of boron by polymer enhanced ultrafiltration
Yürüm, Alp; Yılmaz, Levent; Özbelge, Hilmi Önder; Department of Chemical Engineering (2003)
Preparation and characterization of polymer composites containing boron compounds
Topçuoğlu, Elif; Bayram, Göknur; Sezgi, Naime Aslı; Department of Chemical Engineering (2016)
Epoxy (EP) is a thermosetting polymer which has high dimensional stability. However, the brittleness, low resistance to impact failure and flammability are some limitations of the epoxy polymer. These properties limit the usage of epoxy in the applications where high mechanical strength and flame retardancy properties are needed. The purposes of this study are to improve both mechanical and flame retardancy properties of epoxy by the addition of boron containing compounds (BCC) mainly boron carbide (B4C), a...
Synthesis of carborane derivatives for characterization of carbocations
Doğan, Sevban; Akdağ, Akın; Department of Chemistry (2019)
Weakly coordinating anions are extremely versatile species for capturing and characterizing cationic intermediates. Among these anions, carboranes and some boranes are known to be the most weakly coordinating anions. In this thesis, the carboranes and boranes were synthesized in order to capture and characterize unusual carbocations. B11H14-was synthesized from NaBH4. Undecaborate was converted to B10H14 by oxidation and extrusion of one boron vertex. The B10H14 was successfully converted to ortho-carborane...
Determination of water samples by electrothermal atomic absoption spectrometry
Şimşek, Nail Engin; Ataman, Osman Yavuz; Department of Chemistry (2012)
Boron (B) is a rare element on Earth crust with a natural abundance of 0.001%. However, boron content of water and soils may be significantly high in the regions with rich boron reserves. In addition, extensive use of agrochemicals in soils as well as various natural processes increases the boron concentration in water. Despite B is an essential element for all living creatures, it may pose risks at high level exposures. World Health Organization (WHO) has recommended a daily intake of 1 to 13 mg B for adul...
Citation Formats
A. Baykal, “Synthesis and characterization of alkaline earth and rare earth borophosphate compounds,” Ph.D. - Doctoral Program, Middle East Technical University, 1999.