Academic Journals Database
Disseminating quality controlled scientific knowledge

INNOVATIONS IN THE SYNTHESIS AND CHARACTERIZATION OF ELECTRO-OPTICAL MATERIALS BASED ON POLYMERS WITH CARBAZOLIC SEQUENCES

ADD TO MY LIST
 
Author(s): Ionica Ionita | Ana-Maria Albu | Cristiana Radulescu | Elena Irina Moater

Journal: Scientific Study & Research. Chemistry & Chemical Engineering, Biotechnology, Food Industry
ISSN 1582-540X

Volume: 12;
Issue: 2;
Start page: 101;
Date: 2011;
Original page

Keywords: carbazole | electro-optic | photoconductivity | photorefractive | polymers

ABSTRACT
We live in a complex world where revolutionary progress has been and continues to be made in communications, computer memory, and data processing. There is a growing need for new technologies that rapidly detect and treat diseases at an early stage or even pre-stage. As we are accustomed to these advances, our expectations will demand more compact, energy-efficient, rapidly responding, and environmentally safe technologies. Since the discovery of the photorefractive effect in organic polymers, carbazole-containing polymers have also attracted much attention because of their photoconductivity. In this context, multicomponent polymers with structural units containing both photoconductive and electro-optic functionalities in the side chain can be regarded as potentially suitable materials for photorefractive applications. Azobenzene photochemistry is a fascinating area of investigation, on one hand, because it is fairly well known, and on the other hand, because it has produced and continues to reveal completely unexpected phenomena, some of them still unexplained. When the azobenzene group is incorporated into a polymer, its photoisomerization can have a wide range of unexpected possible consequences. Connecting the carbazole sequence with azo sequence, using en spacer with  electrons, can enhance the electro-optical properties of the polymer materials based on carbazole. That can be realized first by (co)polymerization of the monomers with the azo-carbazole sequences. Secondly, the chemical transformations of the polymers contented by (co)polymerization of the known monomers with the carbazole monomers will be used. In these ideas the goal of this paper is an investigation of the scientifically literature regarding the new electro-active materials, peculiarly photorefractive alongside of our results in this field.
Why do you need a reservation system?      Save time & money - Smart Internet Solutions