Radiation-Induced Solid-State Polymerization of Allylthiourea and Crystal Structure Effects

1987-5
Usanmaz, Ali
Yılmaz, Elvan
Show full item record
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
123
views
0
downloads
Allylthiourea crystals grown from water and from ethanol have been found to belong to the space groupP21/c and P21/m or related, respectively. The corresponding unit cell parameters are a = 13.45 Å, b = 17.33 Å,c = 14.38 Å, β = 96.6°, and d = 1.18g/cm3 for water-grown crystals, and a = 14.65 Å, b = 17.18 Å, c = 13.15 Å, β = 95.5°, and 1.17 g/cm3 for ethanol-grown crystals.
General Engineering
https://hdl.handle.net/11511/52086
Journal of Macromolecular Science: Part A - Chemistry
Department of Chemistry, Article

Suggestions

ELECTROINITIATED POLYMERIZATION OF ACROLEIN BY DIRECT AND INDIRECT ELECTRON-TRANSFER VIA CONTROLLED POTENTIAL ELECTROLYSIS
Toppare, Levent Kamil; Akbulut, Ural (Informa UK Limited, 1990-01-01)
Electroinitiated polymerization of acrolein has been achieved by controlled potential electrolysis at the reduction peak potential of the monomer for direct electron transfer. Kinetics and type of mechanism of the polymerization have been investigated. the structure of the polymer has also been examined by IR spectroscopy. in a separate experiment, a small amount of CCI4 was added to a polymerization system. Since the reduction peak potential of CCI4 appears at a more anodic region than that of acrolein on ...
Study of adsorption characteristics of long chain alkyl amine and petroleum sulfonate on silicates by electrokinetic potential, microflotation, FTIR, and AFM analyses
ÖZÜN, Savaş; Atalay, M. Umit; Demirci, Şahinde (Informa UK Limited, 2019-05-19)
The long-chain alkyl amines and petroleum sulfonates are mostly used to remove unwanted minerals from feldspar ores in acidic pHs. In this study, their adsorption characteristics on pure albite and quartz were investigated by electrokinetic potential measurements, microflotation tests, Fourier transform infrared spectroscopy, and atomic force microscopy studies. According to the results, amine had strong influence on zeta potentials of both albite and quartz turning them positive and resulting over 90% flot...
POLYESTER FILM STRIPS COATED WITH PHOTOGRAPHIC GELATIN CONTAINING IMMOBILIZED INVERTASE
Akbulut, Ural; PEKYARDIMCI, S (Informa UK Limited, 1991-01-01)
Invertase was immobilized into photographic gelatin by chemical crosslinking with formaldehyde and chromium (III) acetate. Polyester film strips were coated with invertase-gelatin mixture which increased durability during consecutive immersions into reaction media. The effect of gelatin, crosslinker and enzyme concentrations on activity were studied. Enzyme leakages from immobilized invertase film strips were controlled by washing with EDTA solutions. The activities of washing solutions were measured sp...
Behaviour of bentonite suspensions in non-aqueous media
Uskarcı, Togan; Arol, Ali İhsan; Department of Mining Engineering (2006)
Bentonite is a smectite type clay mineral and swells in water. In this thesis, the effect of acetone, methyl-ethyl ketone, n-hexane on the properties of bentonite was determined by thermal analysis and water absorption tests. The tests indicated no significant change with treating bentonite with organic liquids. Because of the swelling property, only small amount of bentonite can be suspended in water. This may limit certain applications of bentonite. In this thesis, feasibility of suspending large quantiti...
Investigation, Modeling and Design of a Cathodic Protection System for Hull Structures in Marine Environment
Aksu, R.; Uguz, R. O.; ERDOĞAN, MUSTAFA; Meco, H.; Karakaya, İshak (2016-06-02)
The corrosion behaviors of metallic components from hull structures of an amphibious vehicle in seawater were investigated. Selected steel types and aluminum alloys were subjected to accelerated corrosion tests in artificial seawater to collect data for simulation of cathodic protection with sacrificial anodes. The electrochemical data obtained via potentiostatic tests were used to simulate cathodic protection of the metallic components under seawater. Potential distributions in marine environment were eval...
Citation Formats
A. Usanmaz and E. Yılmaz, “Radiation-Induced Solid-State Polymerization of Allylthiourea and Crystal Structure Effects,” Journal of Macromolecular Science: Part A - Chemistry, pp. 479–491, 1987, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52086.
METU IIS - Integrated Information Service open@metu.edu.tr