ХЛОРИДЫ ПОЛИОРГАНОСИЛОКСАНОВ С 1-МЕТИЛДИАЗОЛИЛ-МЕТИЛЕНОВЫМИ ГРУППАМИ. СИНТЕЗ И СВОЙСТВА

Chlorides of polyorganosiloxanes with 1-methyldiazolylmethylene groups were synthesized using the reaction of quaternization of poly(chloromethyl)organosiloxanes with 1-methylimidazole. The degree of completeness of this reaction was determined, and the products were characterized by the data of elemental analysis, NMR spectroscopy (1H and 29Si), TGA and DTA. The possibility in principle of obtaining statistical polyorganosiloxanes with the [1-(methyl)imidazolyl]methyl substituent in the frame of the siloxane macromolecule by quaternization of the corresponding chloromethyl-substituted organosilicon polymers with 1-methylimidazole is shown. By the method of TGA and DTA, it was found that the destruction of the obtained ionic liquids occurs when heating them in air above 265 °C. The possibility of fixing the formation of an imidazolium salt by the appearance of a chemical shift in the region ~10 ppm in the 1Н-NMR spectrum has been established.Реакцией кватернизации поли(хлорметил)органосилоксанов с 1-метилимидазолом синтезированы хлориды полиорганосилоксанов с 1-метилдиазолилметиленовыми группами. Определена степень завершенности данной реакции и продукты охарактеризованы данными элементного анализа, ЯМР-спектроскопии (1H и 29Si), ТГА и ДТА. Показана принципиальная возможность получения статистических полиорганосилоксанов с [1-(метил)-имидазолил]-метильным заместителем в обрамлении силоксановой макромолекулы реакцией кватернизации соответствующих хлорметилзамещенных кремнийорганических полимеров 1-метилимидазолом. Методом ТГА и ДТА обнаружено, что деструкция полученных ионных жидкостей наступает при нагревании на воздухе выше 265 °С. Установлена возможность фиксировать образование соли имидазолия по появлению химсдвига в области ~10 м.д. в 1Н-ЯМР-спектре

CHLORIDES OF POLYORGANOSILOXANES WITH 1-METHYLDIAZOLYLMETHYLENIC GROUPS. SYNTHESIS AND PROPERTIES

Chlorides of polyorganosiloxanes with 1-methyldiazolylmethylene groups were synthesized using the reaction of quaternization of poly(chloromethyl)organosiloxanes with 1-methylimidazole. The degree of completeness of this reaction was determined, and the products were characterized by the data of elemental analysis, NMR spectroscopy (1H and 29Si), TGA and DTA. The possibility in principle of obtaining statistical polyorganosiloxanes with the [1-(methyl)imidazolyl]methyl substituent in the frame of the siloxane macromolecule by quaternization of the corresponding chloromethyl-substituted organosilicon polymers with 1-methylimidazole is shown. By the method of TGA and DTA, it was found that the destruction of the obtained ionic liquids occurs when heating them in air above 265 °C. The possibility of fixing the formation of an imidazolium salt by the appearance of a chemical shift in the region ~10 ppm in the 1Н-NMR spectrum has been established