scholarly journals Synthesis and studying the properties of photochromic materials based on derivatives of anthraquinone

2016 ◽  
Vol 12 (3) ◽  
pp. 12-19
Author(s):  
Vasilii A Litvinov ◽  
Lyubov S Klimenko

Objects of the study are derivatives of 1-p-t-butyl-phenoxy-9,10-anthraquinone with the various substituents in the position 2 and 4. As a result new anthraquinone derivatives have been obtained and the comparative study of their photochromic properties in solutions and polymer layers have been realized. The direct dependence of photographic characteristics of samples on chemical structure and conditions of thermal treatment was established. Tests have shown that the acylaminoderivatives of 1-aryloxy-9, 10-anthra-quinone synthesized can be used as light sensitive components of photochromic materials for the modern optical recording and information processing.

2015 ◽  
Vol 11 (3) ◽  
pp. 22-29
Author(s):  
Lyubov S Klimenko ◽  
Dmitrii S Korneev ◽  
Vasilii A Litvinov

New photochromic 2-acylaminoderivatives of 1-p-t-butylphenoxy-9,10-anthraquinone with the various substituents in acyl groups are synthesized. The quantitative dependence of photochemical characteristics of synthesized compounds on character of substituent and nature of the solvent are established. Comparative study of their properties in solutions and polymer layers is realized. Tests show that acylaminoderivatives can be used as components of photochromic materials.


2013 ◽  
Vol 763 ◽  
pp. 88-92 ◽  
Author(s):  
Ren Jie Wang ◽  
Pan Pan Ren ◽  
Shi Qiang Cui ◽  
Shou Zhi Pu

A novel unsymmetrical diarylethene derivative containing thiophene moieties, in which a methoxy group was substituted at the para-positions of the terminal phenyl ring, was synthesized. Its photochromic properties were investigated in detail, the results indicated that the diarylethene 1o changed the color from colorless to blue, which the absorption maxima were observed at 611 and 627 nm in hexane and PMMA film when irradiation with 297 nm UV light. Additionally, the open-ring isomer of the diarylethene 1o exhibited relatively strong fluorescence at 305 nm in hexane when excited at 322 nm and the fluorescence intensity progressively decreased accompany with the photocyclization occurs. Finally, using this diarylethene as recording medium, polarization optical recording was carried out successfully.


Manuskripta ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 67
Author(s):  
Novarina Novarina

Abstract: This research is a comparative literary study that uses Malay and Javanese versions of Mahabarata text sources. The research objects used were the text edition of Pandhawa Gubah (PG) by Sudibjo Z. Hadisutjipto and the text of Cheritera Pandawa Lima (CPL) by Khalid Hussain. The research method used is descriptive-analysis method. In the comparative study used a comparative literary theory proposed by Endraswara (2011). The results of the text comparison reveal the similarities and differences in the image of Bima figures in the Javanese and Malay versions. The equation as a whole is that both texts contain the same heroic storyline and heroic character, Bima. In addition, Indian influence is still evident in the two texts seen from the nuances of Hinduism that exist in both texts. While the difference is seen in the events that accompany Bima's struggle in achieving his victory. Based on these similarities and differences, it can be seen that the authors attempt to represent the concept of metaphysical interactions vertically and horizontally expressed through PG text. --- Abstrak: Penelitian ini adalah satu kajian sastra bandingan yang menggunakan sumber teks Mahabarata versi Melayu dan Jawa. Objek penelitian yang digunakan adalah edisi teks Pandhawa Gubah (PG) karya Sudibjo Z. Hadisutjipto dan teks Cheritera Pandawa Lima (CPL) karya Khalid Hussain. Metode penelitian yang digunakan adalah metode deskriptif-analisis. Dalam telaah perbandingan digunakan teori sastra bandingan yang dikemukakan Endraswara (2011). Hasil perbandingan teks mengungkapkan adanya persamaan dan perbedaan citra tokoh Bima dalam versi Jawa maupun versi Melayu. Persamaan secara keseluruhan adalah kedua teks tersebut mengandung alur cerita kepahlawanan dan tokoh pahlawan yang sama yaitu Bima. Selain itu, pengaruh India masih tampak dalam kedua teks tersebut dilihat dari nuansa Hinduisme yang ada dalam kedua teks. Sementara perbedaannya tampak pada peristiwa-peristiwa yang menyertai perjuangan Bima dalam mencapai kemenangannya. Berdasarkan persamaan dan perbedaan tersebut tampak adanya upaya penulis untuk merepresentasikan konsep interaksi metafisik secara vertikal dan horizontal yang diungkapkan melalui teks PG.


2008 ◽  
Vol 2008 (1) ◽  
pp. 37-44
Author(s):  
Teruaki Takahashi

In the context of the controversies surrounding »globalisation« and In the context of the controversies surrounding »globalisation« and »multiculturality« the comparative study of cultures has the task of aiding intercultural communication and of contributing to the success of intercultural understanding. The model of contrastive cultural comparison discussed here is claimed to have applacibility to every possible study of other countries (»Auslandswissenschaft«) and to be able to provide the Geisteswissenschaften with an intercultural orientation.


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