Category Archives: Year 2016 Issue 9

Herbicidal ionic liquids with bisammonium cations

Damian KACZMAREK*, Rafał GISZTER – Poznan University of Technology, Poznan, Poland; Katarzyna MARCINKOWSKA – Institute of Plant Protection – National Research Institute, Poznan, Poland Please cite as: CHEMIK 2016, 70, 9, 541–548 Compound structure is one of the main properties used for classification of ionic liquids (ILs). There are liquids where a cation has a charge on nitrogen, phosphorus, oxygen or sulfur atoms. This group includes among others ammonium and phosphonium ionic liquids. The cation may have...
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Chiral ionic liquid based on N-(2-hydroxyethyl) pyrrolidine and its use in Diels-Alder reaction

Marcin GANO*, Ewa JANUS – Institute of Organic Chemical Technology, West Pomeranian University of Technology, Szczecin, Poland Please cite as: CHEMIK 2016, 70, 9, 503–508 Among many possible applications of ionic liquids, there is one that particularly brings plenty of advantages. Replacing popular solvents in the organic synthesis and catalysis increases the yield, reaction rate, selectivity, as well as allows the recovery and reuse of both the ionic liquid and the catalyst. The asymmetric catalysis is one of...
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Properties of nanofibres modified with ionic liquid

Joanna FOKSOWICZ-FLACZYK*, Judyta WALENTOWSKA, Weronika GIEPARDA, Rafał WÓJCIK – Institute of Natural Fibres and Medicinal Plants, Poznań, Poland Please cite as: CHEMIK 2016, 70, 9, 527–532 Broad application possibilities of nanofibres in many fields of the economy, including biomedical materials, packaging, filters, textiles and composite materials, force researchers to intensify their studies related to the modifications and the achievement of new properties. Nanofibres have fundamentally different properties than standard fibres, mainly due to the surface area/weight ratio, resulting...
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Phase equilibrium in the systems (alkanes, or alcohols, or ionic liquids with fragrance raw materials) (A review)

Urszula DOMAŃSKA-ŻELAZNA* – Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland Please cite as: CHEMIK 2016, 70, 9, 463–470 Fragrance materials are used mainly in food and cosmetic industry to give scent to a number of products. Fragrances date back to the ancient civilisations – it is known that Egyptians used perfumes, including vegetable oil, incenses and mixtures of resins. The knowledge of phase equilibria is required to design processes for obtaining new fragrance materials. The...
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Antioxidant properties of ionic liquids based on vitamin C

Kamil CZERNIAK* - Department of Chemical Technology, Poznan University of Technology, Poznan, Poland Please cite as: CHEMIK 2016, 70, 9, 521–526 An interest in ionic liquids unflagging for several decades is related to their application potential [1]. The term ionic liquids (ILs) refers to the compounds consisting of ions with melting point below 100°C [2]. The ILs are usually composed of an organic cation and anions, both organic and inorganic ones [3÷7]. Moreover, the ILs are described...
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The influence of addition of sulfate ionic liquid precursors on the electrochemical properties of the electrodeposited nickel coatings

Marek BARANIAK, Jarosław WOJCIECHOWSKI – Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznań, Poland; Juliusz PERNAK – Institute of Chemical Technology and Engineering, Poznan University of Technology, Poznań, Poland; Grzegorz LOTA* – Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznań, Poland Please cite as: CHEMIK 2016, 70, 9, 497–502 One of the most often used processes of an electrolytic metal deposition on steel and alloy components surfaces is nickel plating. The nickel...
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