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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Chemija / Chemistry (N003)
Author(s): Gudeika, Dalius;Lygaitis, R;Gražulevičius, Juozas Vidas;Kublickas, R;Rubežienė, Vitalija;Vedegytė, Jūratė
Title: Synthesis and properties of dimeric naphthalene diimides
Is part of: Chemija. , T. 23, Nr. 3 (2012)
Extent: p. 233-238
Date: 2012
Keywords: Naphthalene diimide;Condensation;Glass formation;Optical properties
Abstract: New dimeric naphthalene diimides were synthesized via condensation of 1,4,5,8-naphthalene-tetracarboxylic dianhydride with different aromatic amines such as 2-amino-4-tert-amylphenol and 4-tert-butylcyclohexylamine as well as using linking agents such as hydrazine and p-phenylenediamine. The unsymmetrical imide synthesis approach was used to prepare intermediate derivatives. The structures of the compounds were characterized by means of H-1 NMR, IR and mass spectrometry. The thermal behavior of the naphthalene diimides was investigated via differential scanning calorimetry. The studies showed that the compounds prepared are amorphous materials with glass transition temperatures from 132 degrees C to 266 degrees C. Optical properties of the synthesised naphthalene diimides in solution were studied by UV spectroscopy. All the compounds absorb electromagnetic radiation in the range of 200-400 nm
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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