Preparation of block copolymers with macro-azonitrile as an initiator and characterization of the products

Ulupınar, Sevim


Preparation of MFI type zeolite membranes in a flow system with circulation of the synthesis solution
Çulfaz Emecen, Pınar Zeynep; Kalıpçılar, Halil (2006-06-20)
MFI type zeolite membranes were prepared on seeded tubular alumina supports in a flow system where the synthesis solution was circulated through the support with flow rates of 6, 24 and 48 mL/min. Syntheses were carried out using clear solutions, at 80 degrees C and 95 degrees C at atmospheric pressure in the flow system, and at autogeneous pressure in the batch system. The membranes synthesized in the flow system had thickness of 1-2 mu m, and were thinner than the membranes synthesized in the batch system...
Preparation and characterization of PT nanocatalysts supported by thiourea-treated GO nanoparticles : the application to anodic process of DMFC
Karaosmanoğlu, Toprak Seda; Gökağaç Arslan, Gülsün; Department of Chemistry (2017)
In this thesis, Pt / graphene oxide (Pt / GO), Pt / reduced GO (Pt / 24 h thiourea-treated GO), Pt / 20 min thiourea-treated GO, Pt/ 2 h thiourea-treated GO, and Pt / 5 h thiourea-treated GO nanocatalysts were prepared for methanol oxidation reaction (MOR). The last three ones were synthesized for the first time. They were characterized by FTIR, UV-Vis spectroscopy, acid-base back titration, XRD, XPS, TEM and ICP-MS techniques. Their electrochemical properties and performances toward methanol oxidation reac...
Preparation and characterization of polystyrene-b-poly(2-vinylpyridine) coordinated to metal or metal ion nanoparticles
Öztürk, Yurdagül; Kaleli, Kadir; UYAR, Tamer; Kayran İşçi, Ceyhan; Hacaloğlu, Jale (2014-03-01)
In this study, Co, Cr or Au3+ functional polystyrene-block-poly(2-vinylpyridine), PS-b-P2VP complexes were prepared and characterized. Coordination of metal atom or ion to nitrogen atom of pyridine rings was confirmed by FTIR analyses. The strength and efficiency of coordination of P2VP blocks to Co, Cr or Au3+ mainly depends on charge and stability of the complex formed that is mainly related to the energy of d orbitals.The results reveal that the thermal stability of the polymer composite formed increases...
Aydemir, Umut; Erel Göktepe, İrem; Akdağ, Akın; Department of Biochemistry (2021-9-24)
Boron Neutron Capture Therapy (BNCT) is a non-invasive radiotherapy technique which is based on delivery of non-radioactive 10B compounds to cancer cells and irradiation of the tumour tissues with low energy thermal neutrons. It is a promising radiotherapy technique due to reduce the side effects of the treatment. The main goal of this thesis is to prepare a non-toxic polymer vehicle to provide efficient delivery of 10B to cancer cells. Dodecahydro-closo-dodecaborate (B12H12)2- (B12) anion was utilized as a...
Preparation of polymeric azocarbamates, their use in the synthesis of block copolymers with styrene and characterization of the products.
Özdemir, A. Burhan; Department of Chemistry (1985)
Citation Formats
S. Ulupınar, “Preparation of block copolymers with macro-azonitrile as an initiator and characterization of the products,” Middle East Technical University, 1990.