Properties and structures of dilute polymer solutions: semiflexibility of chains.

1984
Ertepınar, Hamide

Suggestions

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 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...
Investigations on the properties and drug releases of biodegradable polymer coatings on metal substrates as drug carriers
Baydemir, Tuncay; Bayramlı, Erdal; Department of Polymer Science and Technology (2009)
The use of various biodegradable polymers for the improvement of different controlled and long-lasting drug release systems is an active research area in recent years. The application of different metal prostheses, especially titanium based ones, to the human body is also very common. A most important disadvantage of these prostheses is the risk of infection at the application areas that necessitates the removing of the prosthesis with a second surgical operation and reapplication of it after recovery. One ...
Synthesis and characterization of multi-hollow opaque polymer pigments
Asmaoğlu, Serdar; Gündüz, Güngör; Maviş, Bora; Department of Chemical Engineering (2012)
In the present work, a new generation opaque polymer pigment with multihollow structure was synthesized by suspension polymerization of “Water-in-Oil-in-Water” (W/O/W) emulsion system. Oil phase was methyl methacrylate and ethylene glycol dimethacrylate monomer mixture at 1:1 weight ratio. The dimension and distribution of hollows inside polymer particles are dependent on the size of water droplets which are encapsulated in micelles. For Water-in-Oil (W/O) assembly, a hydrophobic surfactant and hydrophilic ...
Microwave initiated polymerization of trihalophenyleneoxide and aniline
Levent, Fulya; Kısakürek, Duygu; Toppare, Levent Kamil; Department of Polymer Science and Technology (2011)
The aim of the study is to synthesize poly(dibromophenyleneoxide) and polyaniline separately applying different microwave energies (90-900 watt), water amounts (1-5 ml) and time intervals (2-10 min) and investigate the effects of these parameters on the percent conversion of the polymers. The synthesis of poly(dibromophenyleneoxide) (P), radical ion polymer (RIP) and crosslinked polymer (CLP) were achieved by using tribromophenol (TBP) and Ca(OH)2 via microwave energy in a very short time interval. P and RI...
Citation Formats
H. Ertepınar, “Properties and structures of dilute polymer solutions: semiflexibility of chains.,” Ph.D. - Doctoral Program, Middle East Technical University, 1984.