Accession Number : ADA494519


Title :   Synthesis of New Organic Semiconducting Polymer Materials Having High Radiowave Absorption Rate


Descriptive Note : Final rept. 1 Dec 2007-15 Dec 2008


Corporate Author : UNESCO YEREVAN (ARMENIA) LIFE SCIENCES HIGHER EDUCATIONAL SCHOOL


Personal Author(s) : Matnishyan, Hakob A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a494519.pdf


Report Date : Nov 2008


Pagination or Media Count : 17


Abstract : In the present project for the first time the polyaniline, polydifenilamine, polycarbazole of the set structure (including functional groups) and morphology of nano-sized particles with the optimal radiowaves absorption rate was elaborated. From the obtained semiconducting polymers, elastic and flexible composite materials including nano-composites were developed. We find out that the silicon compositions and nano-sized compositions have the highest adsorption properties. We suggest that the development of these nano-sized compositions and their derivatives is very promising from the point of obtaining new coating materials, having higher adsorption properties. However, in the framework of present project, our technical possibility did not allow us to study their adsorption properties at different frequency of modulated and non-modulated MW, as well as their multisided physicochemical and structural characteristics. For the study of MW adsorption properties of synthetised polymers film a new microcalorimetric and radiometric methods were elaborated. However, for obtaining more precise data on specific adsorption rate of MW at different frequency for different materials these new methods need the future modification. For estimation of the protective (shielding) properties of organisms from non-thermal biological effect of MW, two extrasensitive methods were used: a) luminescent method measuring the hydrogen peroxide (H2O2) formation in shielded and non-shielded water samples and b) isolated snail heart muscle contractility. Thus, by performing the present project it was established the necessary theoretical chemo-technical basis for synthesis of aromatic polymers and for studying their MW adsorption properties from the point of public health.


Descriptors :   *MICROWAVES , *ABSORPTION , *SYNTHESIS(CHEMISTRY) , *POLYMERS , PHYSICOCHEMICAL PROPERTIES , POLYMERIC FILMS , POLYANILINES , COMPOSITE MATERIALS , SEMICONDUCTORS


Subject Categories : Polymer Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE