ABSTRACT

The methods of polymer chemistry are divided into synthetic and analytical methods. Methods providing information about the microstructure, the size and shape of macromolecules, supermolecular structures, and, in some investigations, about solid body defects are particularly useful. A specific feature of the radiation chemistry of polymers is the necessity for the experimental and theoretical determination of radiation-chemical yields of polymerization, initiation, crosslinking, etc. According to SI, the activity of a radionuclide in a source is expressed in becquerels. 1 Bq corresponds to the activity of a nuclide in a radioactive source in which during 1 s one spontaneous nuclear transition from a certain nuclear-energetic state takes place.