The rodlike ionogenic polymers poly(p-pyridylene-phenylene) and poly(p-pyridylene/phenylene-ethynylene) form polyelectrolytes when protonated with toluene sulfonic acid or ethane sulfonic acid in chloroform solution. This molecular modification, clearly indicated by a marked red shift of the UV absorption band, induces the formation of prolate, bundlelike aggregates, whose size and shape are ob...

The etherification of glycerol with tert-butyl alcohol in the liquid phase, over different sulfonic acid functionalized zeolites, has been studied. The reaction was carried out using microwaves as a way of heating, measured at autogenous pressure and without any solvent. Dealuminated HY and HZSM-5 zeolites by acid treatment were functionalized with two different organosilica precursors: 3-merca...

Berberine is an isoquinoline alkaloid with multiple pharmacological actions, including anti-inflammatory activity. The aims of this study were to examine the effect of berberine on the mucosal healing process and to investigate whether berberine can inhibit the increased production of interleukin-8 in trinitrobenzene sulfonic acid-induced colitis in rats. Berberine was administered orally for 3...

New sulfonic acid functionalized ionic liquids (SAFILs) with bis(trifluoromethylsulfonyl)imide anions were synthesized. These ionic liquids are strong Brønsted acids and can solubilize metal oxides. Water-immiscible SAFILs were used as organic phases in solvent extraction studies.

Методами спектроскопии ИК- и ЯМР Н С с использованием теоретических расчетов (программы ChemDrawUltra, Marvin, ACD/Labs) изучены спектральные характеристики L-цистеинсульфоновой кислоты (L-cysSOH) в растворах виде частично протонированной формы (SO)CHCH(NH)COO-(рН=3) депротонированного иона(SO-)CHCH(NH)COO-(рН=10). Установлено, что отличие от спектров кислоты, спектрах не наблюдается сильного с...