Fullerenol/Üretan yağı kompozi̇ti̇n üreti̇mi̇ ve özelli̇kleri̇

Fullerenes are members of organic molecules which are formed by carbon allotropes. They proved not only to be new carbon allotrope with esthetic appearance but also a molecule of many talents possessing a wide range of different properties. They are widely used in industrial application due to its physical, chemical and electrochemical properties in recent years. However, the wide application of fullerenes is impeded by their almost complete incompatibility with water and aqueous solution. In early stage of its research, it was embedded into polymeric matrix. Resulting products have been studied for combined properties of fullerene and polymer. However, incompatibility between fullerene and the polymer matrix leads to formation of large fullerene aggregates. These problems are sorted out by modification of the fullerene which retain many of characteristic properties of pristine fullerene but are easier to dissolve in common organic solvents. Several functional groups have been attached exohedrally onto fullerene surface via, hydrogenation, halogenation, radical addition, and hydroxylation and go on. Hydroxyl derivatives have been studied most extensively. These types of fullerene were named as fullerenol. They have attracted great deal of interest because of its easy synthesis, high solubility and stability. The produce of polymers from renewable resources is recentlyhave much attentionand scientist has focused on theuse of cheap, biodegradable, and renewable startingmaterials in order to reduce petroleum dependence and the detrimental affects on the environment. Vegetable oils and fatty acids areone of the cheapest and most abundant biological sourcesavailable in large quantities, and their use as starting materialshas many advantages, including low toxicity and inherentbiodegradability. In recent years, extensive work has been doneto develop polymers from triglycerides or fatty acids as the maincomponent. The ultimate aim of this thesis is to synthesis of fullerenol urethane oil composite and to determine its film properties. For this purpose, first fullerene molecules were converted to fullerenol molecules by the reaction of fullerene with aqueous NaOH in the presence of tetrabutylammonium hydroxide, the most effective catalyst. The structure of prepared fullerenol was investigated by using FT-IR. "OH" groups which attached on the fullerene surface was determined by TGA analysis. Then, partial glyceride was prepared by sun flower oil and glycerol by glycerolysis reaction. After that fullerenol molecules were covalently bounded to partial glyceride. Thermal and structural properties of final products have been systematically investigated using techniques including FT-IR, DSC and TGA. Also, film properties such as flexibility, water resistance, acid resistance, alkali resistance and drying time were determined according to ASTM.