Dependence of hardness on chain statistics of weakly and late crosslinked poly(methly methacrylate) and styrene-acrylonitrile copolymer

Effect of film deposition conditions on the properties of multilayers of poly[2-(dimethylamino)ethyl methacrylate-b-poly(2(diethylamino)ethyl methacrylate)] micelles and poly(sodium 4-styrenesulfonate) Gündoğdu, Dilara; Erel Göktepe, İrem; Department of Chemistry (2017) Block copolymer micelles (BCMs) are ideal drug carriers due to their hydrophobic core regions which can encapsulate water insoluble drug molecules. BCMs with stimuli-responsive cores are of specific interest due to release of the cargo by simply changing the environmental conditions, e.g. pH, temperature, ionic strength. Incorporation of BCMs into layer-by-layer (LbL) films is important to keep the BCMs stable in bloodstream and prevent the release of the cargo at an early stage. In addition, BCMs increase ...
Influence of system parameters on the disinfection capability of water distribution networks / Koç, Selin; Merzi, Nuri; Department of Civil Engineering (2014) Adequate municipal water supply for people, is one of the most important signs of civilization. When water is cleaned from unhealthy compounds, the most important point for consumers is completed. Chlorine is used as the most common disinfectant. Some basic parameters which affect water quality are roughness coefficient, wall decay coefficient and bulk decay coefficient; amount of leakage is also effective. Efficiency of the network and water quality are influenced by changing these parameters in a water di...
Influence of particle size of glass powder on the crystallisation kinetic parameters of a fluorophosphate glass Ozturk, A (2000-04-01) Crystallisation behaviour of a fluorophosphate glass composed of the system AIF(3)-CaF2-Mg-2-Sr-2- BaF2-Ba(PO3)(2) was studied at nonisothermal conditions using differential thermal analysis (DTA). Kinetic parameters for crystallisation, namely, the activation energy, E, frequency factor; upsilon, and Avrami exponent, n, were determined as a function of the particle size of the glass powder and different furnace atmosphere. Also the Effect of flow rate of nitrogen gas on the crystallisation behaviour was st...
Calculation of the ultrasonic frequencies of the q[110] mode for the first-order and tricritical phase transitions in NH4Cl Yurtseven, Hasan Hamit (2000-07-01) We study here the ultrasonic frequencies of the q[110] mode of NH4Cl, which we have correlated to the volume changes for the first-order and the tricritical phase transitions in this crystal. We calculated the ultrasonic frequencies of this mode by means of our correlations for the pressures of 0, 0.5 and 0.95 kbar in the first order, and for 1.5 kbar in the tricritical phase regions in NH4Cl using the observed data.
Dependence of plasmonic enhancement of photocurrent in a-Si:H on the position and thickness of SiNx spacer layers Saleh, Zaki M.; Nasser, Hisham; Ozkol, Engin; Bek, Alpan; Turan, Raşit (2015-04-29) Plasmonic interfaces integrated to the front, back and both surfaces of photovoltaic thin films show different degrees of enhancement of light trapping. Enhancements in the spectral dependence of photocurrent normalized to the power of excitation light are used as an indicator of enhanced light trapping. In a previous study, we obtained enhancement in the spectral range of 600-700 nm by integrating 100-nm Ag nanoparticles to the back surface of a-Si:H with a critical dependence on the SiNx spacer layer thic...

Citation Formats

G. Dikencik, “Dependence of hardness on chain statistics of weakly and late crosslinked poly(methly methacrylate) and styrene-acrylonitrile copolymer,” Ph.D. - Doctoral Program, Middle East Technical University, 2001.