Articolul precedent |
Articolul urmator |
842 6 |
Ultima descărcare din IBN: 2023-11-25 10:31 |
SM ISO690:2012 ROBU, Stephan V., LOGHINA (BEŢ), Liudmila, GETMANCHUK, Yu., POPUSHOI, Ana, SHEPEL, Diana, MESHALKIN, Alexei, PRISAKAR, Alexandr, BOIARINOV, Yu., AKIMOVA, Elena. Synthesis and characteristics investigation of copolymer PEPC with azodye disperse orange. In: The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova, 28-30 mai 2014, Chișinău. Chișinău, Republica Moldova: Institutul de Chimie al AȘM, 2014, p. 114. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova 2014 | |
Conferința "The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova" Chișinău, Moldova, 28-30 mai 2014 | |
|
|
Pag. 114-114 | |
Descarcă PDF | |
Rezumat | |
Recently polymer materials with azodyes become attractive materials for holographic recording due to possibility of surface relief grating fabrication with high diffraction efficiency and resolution. Large surface modulation (greater than 300 nm) and high diffraction efficiency (greater than 30%) could be obtained under optimal recording conditions [1]. One of the main advantages of these materials is the relief pattern obtaining without any additional treatment with organic solvents [2]. In this work the synthesis and characteristics study of the copolymer of poly(9epoxypropyl)carbazole (PEPC) with azodye Disperse Orange, synthesized at the Chemistry Department of State Unoversity of Moldova was carried out. Copolymer of epoxypropylcarbazole with Disperse Orange was obtained by polycondensation scheme shown in Figure 1. Figure 1. Scheme of copolymerization of epoxypropylcarbazole with Disperse Orange. Polymerization was carried out in closed ampoule at a temperature of 120º C for 4 hours. The copolymer was purified by precipitation in hexane and then in methanol. Reaction product yield of the polymerization reaction was 60%. The resulting material was investigated by FTIR spectroscopy using attenuated total reflectance (ATR) accessory of Spectrum 100 FTIR (PerkinElmer) spectrometer in 4000 - 650 cm-1. Analysis of IR spectra showed the appearance of new absorption bands at 814 cm-1 and 1516 cm-1, characteristic for nitro-groups and at 3069 cm-1 characteristic for secondary amino-group. The polymer material can be recommended for registration of the holographic images by photochemical methods. |
|
|