Синтез наночастинок cdse у присутності поверхнево-активних олігопероксидів

In this paper the method of obtaining CdSe nanoparticles that don't contain any impurities as well as hydro- and organosols on their basis is proposed. It is shown that changing the nature and concentration of surface-active functional oligoperoxides one can control the size of semiconductor particles and thereafter the optical properties of sols that can be used for the formation of nanocomposite materials – the elements of photovoltaic devices. Запропоновано метод одержання наночастинок CdSe, які не містять домішок, і, на їх основі, стабільних гідро- та оганозолів.

Олігоестери з функціональними діалкілпероксидними групами

Using the method of low temperature polycondensation of pyromellitic acid tetrachloroanhydride with polyethylene glycols and tert-butylperoxymethanol, oligoesters with functional dialkyl peroxy groups are synthesized. Their surface activity in the water solution and their thermal stability are researched. Методом низькотемпературної поліконденсації тетрахлорангідриду піромелітової кислоти з поліетиленгліколями і трет-бутилпероксиметанолом синтезовано нові олігоестери з первинно-третинними діалкілпероксидними функціональними групами.

Heterofunctional oligoperoxides on the interface

It is shown that the attachment of macromolecules of the functional oligoperoxides to the planar polymeric surfaces or to the surface of a dispersed phase results in the localization of the peroxide  groups on the interface. Designing of interphase layers with a well-defined structure and nature with the use of the peroxydized interphases and grafting reaction “to” and "from" the surface is carried out. The compatibilizing polymeric layers in polymeric blends and the grafting surface layers with special properties are formed.

Main regularities of polyethyleneterephtalate surface modification by oligoperoxides

The polyethyleneterephtalate surface has been modified with new oligoperoxides, synthesized on the base of pyromellitic acid chloroanhydride, polyethylene glycol-9 and tert-butylperoxymethanole. The developed method allows to achieve the degree of surface modification up to 64 %. Ability of dextrane macromolecules attaching onto peroxidized surface has been shown. The correlation between the degree of surface modification and oligoperoxide concentration in solution, temperature and time of the modification process has been established.