Category Archives: Year 2010 Issue 7

Marjoram oil, its characteristics and application

Marjoram oil, its characteristics and application

Krystyna NOWAK, Jan OGONOWSKI - Institute of Organic Chemistry and Technology, Cracow University of Technology, Kraków Please cited as: CHEMIK 2010, 64, 7-8, 539-548 The proposal to develop a clear oil majerankowego importance in food and cosmetics. Majerankowego oil derived from the active substances are also applicable in obtaining medicinal preparations, including ointments. From the standpoint of industrial practice remains a problem obtaining this valuable raw material with a satisfactory performance. Keywords: marjoram oil Read more: Read more

Trends in the development of biodegradable starch and polyurethane materials

Trends in the development of biodegradable starch and polyurethane materials Szymon KUGLER ? West Pomeranian University of Technology in Szczecin, Institute of Polymers, Szczecin Please cited as: CHEMIK 2010, 64, 7-8, 531-538 This article contains review of the newest research results in the starch?polyurethane polymers. It includes description of the selected starch modification processes and manufacture of starch-polyurethane materials, performed in the last decade. Moreover, methods of evaluation and potential applications of these polymers have been described. Keywords: starch ? polyurethane materials, biodegradability,...
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Poly (vinyl alcohol) ? biodegradable vinyl material

Poly(vinyl alcohol) ? biodegradable vinyl material Jolanta PAJĄK, Michał ZIEMSKI, Bożena NOWAK ? Faculty of Biology and Environmental Protection, University of Silesia, Katowice Please cited as: CHEMIK 2010, 64, 7-8, 523-530 In this article biodegradable polymer poly (vinyl alcohol) (PVA) was characterized as well as its application in the various fields of industry, pharmacy and medicine. The mechanisms of the biodegradation of poly (vinyl alcohol) and the effectiveness of this process in different environmental conditions were presented. Keywords: poli(vinyl alcohol), application, biodegradation Read more: Read more

Synthesis of some heterocyclic compounds and application thereof inelectroluminescent cells

Synthesis of some heterocyclic compounds and application thereof inelectroluminescent cells

Andrzej DANEL, Krzysztof DANEL - Department of Chemistry and Physics, University of Agriculture in Kraków Please cited as: CHEMIK 2010, 64, 7-8, 511-522 Some nitrogen heterocycles such as 1H-pyrazolo[3,4-b]quinolines, 1Hpyrazolo[3,4-b]quinoxalines, bis-pyrazolo[3,4-b; 4?,3?-e]pyridines and benzoxazoles were synthesized. Multilayer devices were fabricated using these dyes. The films were vacuum evaporated or spin-coated from solutions. The devices provided a bright blue, blue-green or green emission. Keywords: electroluminescent devices, bis-pyrazolo[3,4-b;4?,3?-e] pyridines, 1H-pyrazolo[3,4-b]quinolines, 1H-pyrazolo[3,4-b]quinoxalines Read more: Read more