Вперше запропоновано метод одержання функціоналізованих і модифікованих мікро− і наночастинок адсорбцією на їхній поверхні β-дикетонатів перехідних металів.
Показано, що β-дикетонати перехідних металів, зокрема ацетилацетонат Кобальту (ІІІ), можна використовувати як високоефективні ініціатори полімеризації “від
поверхні” субстрату. Запропонований механізм ініціювання радикальної полімеризації мономерів від поверхні субстрату попередньо функціоналізованого ацетилацетона-тами перехідних металів.
Ключові слова: β-дикетонати (ацетилацетонати) перехідних металів, функціоналізація поверхні, адсорбція, полімеризація “від поверхні”.
Among the main approaches to the development of the thin polymeric layers on the molecular level is the
previous surface functionalization by fixation on it the reactive groups, which can be able to provide the polymeric
molecules grafting to the surface. In reference there are know a number of methods with the description
of grafting techniques of different (peroxy, hydroxy–, epoxy– and etc.) reactive groups to the surface. At the
same time, in reference practically is absent the information as to coordinating compounds under this aspect, in
particular as to β-diketonates of transition metals, which attractive the researchers attention due to their ability
to catalyze the different chemical processes. On the other hand, the unique properties of the β-diketonates of
transition metals (in particular, the chain transfer reaction) permit to regulate the length of the grafted
polymeric chain that makes possible a development of the new methods of controlled synthesis of grafted
polymeric layers on different surfaces. Among the all known β-diketonates Cobalt (III) acethylacetonate
Co(acac)3 is the best initiator of the radical polymerization and also can be used as the catalyst of the oxidative
processes. The purpose of the presented work was to determine the functionalization regularities for the
substrates inorganic microparticles (on example of Al2O3) via adsorption on their surface of acetylacetonates
transition metals (using the Cobalt (III) acetylacetonate), to determine their initiating ability under interface
polymerization, and also to investigate the thermal stability of obtained polymeric layers. As a result, it was
firstly shown, that the β-diketonates of transition metals, in particular Cobalt (III) acetylacetonate, is high–
effective initiators of polymerization for methylmetacrylate and 2-hydroxyethylmethacrylate “from the surface”
of substrate. It was proposed the initiation mechanism for radical polymerization of monomers from the
surface of modified substrate previously functionalized by acetylacetonates transition metals. It was studied the
thermal stability of products, immobilized on the substrate surface of Al2O3. As the obtained results showed,
the functionalization of surface of inorganic microparticles by adsorbed β-diketonates of transition metals is an
effective method of its following modification via polymerization “from surfaceі”, and the adsorbed β-diketonates
– are initiators of the polymerization process. Such method can be applied for solution of different
technological problems in microelectronics, optics, medicine and ect.
Key words: β-diketonates (acethylacetonates) of transition metals, functionalization of surface, adsorption.
Впервые предложен метод получения функционализированных и модифицированных микро– и
наночастиц адсорбцией на их поверхности β-дикетонатов переходных металлов. Показано, что β-дикетонаты переходных металлов, в частности ацетилацетонат Кобальта (ІІІ), можно использовать в качестве эффективных инициаторов полимеризации “от поверхности” субстрата. Предложен механизм ини-
циирования радикальной полимеризации мономеров от поверхности субстрата предварительно функ-
ционализированной ацетилацетонатами переходных металлов.
Ключевые слова: β-дикетонаты (ацетилацетонаты) переходных металлов, функционализация
поверхности, адсорбция, полимеризация “от поверхности”.
