Synthesis of a new difunctional anionic initiator and ABA triblock copolymers

Polymerization and characterization of 2-Hydroxyethyl acrylate Vargün, Elif; Usanmaz, Ali; Department of Polymer Science and Technology (2003) Poly(2-Hydroxyethyl acrylate), PHEA, is used as hydrophilic polymeric gels which have been studied because of its great importance for agricultural or biomedical applications. Biomedical applications of hydrogels include soft contact lenses, artificial corneas, soft tissue substitutes and burn dressings. In this study, it was aimed to synthesis the polymers with well-defined molecular weights, polydispersities and cahin topologies. Bulk, solution and atom transfer radical polymerization (ATRP) techniques at...
Synthesis of conducting block copolymers and their use in the immobilization of invertase and polyphenol oxidase enzyme Kıralp, Senem; Kıralp, Senem; Department of Chemistry (2004) A new thiophene derivative containing menthyl group (MM) was synthesized and polymerized via chemical and electrochemical methods. Polymers obtained and MM itself were used to synthesize copolymers with pyrrole under conditions of constant potential electrolysis. Cyclic Voltammetry, thermal analysis and scanning electron microscopy analyses were performed for the characterization of samples. Immobilization of invertase and polyphenol oxidase enzymes was performed in the matrices obtained via copolymerizatio...
Synthesis and characterization of electrochemically polymerized metal-free, nickel and zinc containing phthalocyanine derivatives Yavuz, Arzu; Aras, Leyla; Department of Polymer Science and Technology (2009) In the first part of this study, 4-(2,5-di-2-thiophen-2-yl-pyrrol-1-yl)-phthalonitrile (SNS-PN) was synthesized by utilizing 1,4-di(2-thienyl)-1,4- butadione (SOOS) and 4-aminophthalonitrile via Knorr-Paal Reaction. Nuclear magnetic resonance (1H NMR and 13C NMR) and fourier transform infrared (FTIR) spectroscopies were utilized for the characterization of this compound. SNS-PN monomer was then electrochemically polymerized in acetonitrile/0.2 M LiClO4 solvent/electrolyte couple. Characterizations of the re...
Synthesis and characterization of metal functional polybenzoxazines / Orhan Lekesiz, Tuğba; Hacaloğlu, Jale; Kayran, H. Ceyhan; Department of Chemistry (2014) Polybenzoxazines possessing excellent mechanical and physical properties has been developed to overcome the shortcomings associated with the use of traditional phenolics. Various approaches for performance improvement of polybenzoxazine were examined. These approaches include alloying with other high performance polymers, hybridization with inorganics, and designing of novel monomers as well as high molecular weight polymeric precursors. In the first part of this work, benzoxazines based on phenol and anili...
Synthesis of acrylic based high internal phase emulsion polymers and their application in chromatography Tunç, Yeliz; Hasırcı, Nesrin; Department of Polymer Science and Technology (2009) High internal phase emulsion polymers (PolyHIPEs) are new generation materials with their high porosity and interconnected open-cell structures and finds applications in areas such as supports for catalytic systems, separation media and tissue engineering scaffolds. Styrene based PolyHIPEs are currently the most popular choice, but solvent compatibility and poor mechanical properties of these materials prevent their applications. Therefore development of new polyHIPEs with desired mechanical and cellular pr...

Citation Formats

T. Nugay, “Synthesis of a new difunctional anionic initiator and ABA triblock copolymers,” Ph.D. - Doctoral Program, Middle East Technical University, 1991.